[Shield Tablet Android Development] twistedumbrella:
Actually, when you make the DTB, it pulls both the tn8 and ardbeg DTS files together. The one you quoted is only the battery. Each one in the line is only a part of the full DTB.

The bootloop is the SecureOS configuration that appears to be part of the full build.

==============Kernel DTS/DTB================
KERNEL_DT_NAME_DTB = tegra124-ardbeg-a03-00-battery.dtb tegra124-ardbeg-a03-00.dtb tegra124-ardbeg-battery.dtb tegra124-ardbeg-e1780-1000-a00-00.dtb tegra124-ardbeg-e1780-1000-a00-01.dtb tegra124-ardbeg-e1780-1000-a03-00-battery.dtb tegra124-ardbeg-e1780-1000-a03-00-powerconfig.dtb tegra124-ardbeg-e1780-1000-a03-00.dtb tegra124-ardbeg-e1780-1000-a03-01.dtb tegra124-ardbeg.dtb tegra124-ardbeg_sata.dtb tegra124-bonaire.dtb tegra124-bonaire_sim.dtb tegra124-e1782_sku1100.dtb tegra124-e1791.dtb tegra124-e1923.dtb tegra124-foster-p2530-0384-c00-00.dtb tegra124-foster.dtb tegra124-laguna-pm358.dtb tegra124-laguna.dtb tegra124-loki-02-cell-battery.dtb tegra124-loki-03-cell-battery.dtb tegra124-loki-e2530-a00.dtb tegra124-loki-e2530-a01.dtb tegra124-loki-e2530-a03.dtb tegra124-loki-e2548-a00.dtb tegra124-loki-mods.dtb tegra124-loki-p2530-0000-c00-00.dtb tegra124-loki-p2530-0001-a03-00.dtb tegra124-loki-p2530-0064-c00-00.dtb tegra124-loki-thor195-e2549-a00.dtb tegra124-loki.dtb tegra124-norrin-pm374-0001-c00.dtb tegra124-norrin-pm374-0001-c01.dtb tegra124-norrin.dtb tegra124-thor195.dtb tegra124-tn8-e1765-a03-battery.dtb tegra124-tn8-e1765-a03.dtb tegra124-tn8-e1780-1100-a02-01.dtb tegra124-tn8-e1780-1100-a02-battery.dtb tegra124-tn8-e1780-1100-a02.dtb tegra124-tn8-e1780-1100-a03-01-battery.dtb tegra124-tn8-e1780-1100-a03-01.dtb tegra124-tn8-e1780-1100-a03-battery.dtb tegra124-tn8-e1780-1100-a03.dtb tegra124-tn8-e1784-1100-a00.dtb tegra124-tn8-e1784-1101-a00-01-battery.dtb tegra124-tn8-e1784-1101-a00-battery.dtb tegra124-tn8-e1784-1101-a00.dtb tegra124-tn8-e1922-1100-a00.dtb tegra124-tn8-p1761-1270-a00-battery.dtb tegra124-tn8-p1761-1270-a00.dtb tegra124-tn8-p1761-1270-a02-battery.dtb tegra124-tn8-p1761-1270-a02.dtb tegra124-tn8-p1761-1270-a03-battery.dtb tegra124-tn8-p1761-1270-a03.dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb tegra124-tn8-p1761-1270-a04-e-nobattery.dtb tegra124-tn8-p1761-1270-a04-e.dtb tegra124-tn8-p1761-1470-a00-battery.dtb tegra124-tn8-p1761-1470-a00.dtb tegra124-vcm30_t124.dtb
KERNEL_DTS_PATH = tegra124-ardbeg-a03-00-battery.dts tegra124-ardbeg-a03-00.dts tegra124-ardbeg-battery.dts tegra124-ardbeg-e1780-1000-a00-00.dts tegra124-ardbeg-e1780-1000-a00-01.dts tegra124-ardbeg-e1780-1000-a03-00-battery.dts tegra124-ardbeg-e1780-1000-a03-00-powerconfig.dts tegra124-ardbeg-e1780-1000-a03-00.dts tegra124-ardbeg-e1780-1000-a03-01.dts tegra124-ardbeg.dts tegra124-ardbeg_sata.dts tegra124-bonaire.dts tegra124-bonaire_sim.dts tegra124-e1782_sku1100.dts tegra124-e1791.dts tegra124-e1923.dts tegra124-foster-p2530-0384-c00-00.dts tegra124-foster.dts tegra124-laguna-pm358.dts tegra124-laguna.dts tegra124-loki-02-cell-battery.dts tegra124-loki-03-cell-battery.dts tegra124-loki-e2530-a00.dts tegra124-loki-e2530-a01.dts tegra124-loki-e2530-a03.dts tegra124-loki-e2548-a00.dts tegra124-loki-mods.dts tegra124-loki-p2530-0000-c00-00.dts tegra124-loki-p2530-0001-a03-00.dts tegra124-loki-p2530-0064-c00-00.dts tegra124-loki-thor195-e2549-a00.dts tegra124-loki.dts tegra124-norrin-pm374-0001-c00.dts tegra124-norrin-pm374-0001-c01.dts tegra124-norrin.dts tegra124-thor195.dts tegra124-tn8-e1765-a03-battery.dts tegra124-tn8-e1765-a03.dts tegra124-tn8-e1780-1100-a02-01.dts tegra124-tn8-e1780-1100-a02-battery.dts tegra124-tn8-e1780-1100-a02.dts tegra124-tn8-e1780-1100-a03-01-battery.dts tegra124-tn8-e1780-1100-a03-01.dts tegra124-tn8-e1780-1100-a03-battery.dts tegra124-tn8-e1780-1100-a03.dts tegra124-tn8-e1784-1100-a00.dts tegra124-tn8-e1784-1101-a00-01-battery.dts tegra124-tn8-e1784-1101-a00-battery.dts tegra124-tn8-e1784-1101-a00.dts tegra124-tn8-e1922-1100-a00.dts tegra124-tn8-p1761-1270-a00-battery.dts tegra124-tn8-p1761-1270-a00.dts tegra124-tn8-p1761-1270-a02-battery.dts tegra124-tn8-p1761-1270-a02.dts tegra124-tn8-p1761-1270-a03-battery.dts tegra124-tn8-p1761-1270-a03.dts tegra124-tn8-p1761-1270-a04-e-battery.dts tegra124-tn8-p1761-1270-a04-e-nobattery.dts tegra124-tn8-p1761-1270-a04-e.dts tegra124-tn8-p1761-1470-a00-battery.dts tegra124-tn8-p1761-1470-a00.dts tegra124-vcm30_t124.dts
BUILT_KERNEL_DTB = tegra124-ardbeg-a03-00-battery.dtb tegra124-ardbeg-a03-00.dtb tegra124-ardbeg-battery.dtb tegra124-ardbeg-e1780-1000-a00-00.dtb tegra124-ardbeg-e1780-1000-a00-01.dtb tegra124-ardbeg-e1780-1000-a03-00-battery.dtb tegra124-ardbeg-e1780-1000-a03-00-powerconfig.dtb tegra124-ardbeg-e1780-1000-a03-00.dtb tegra124-ardbeg-e1780-1000-a03-01.dtb tegra124-ardbeg.dtb tegra124-ardbeg_sata.dtb tegra124-bonaire.dtb tegra124-bonaire_sim.dtb tegra124-e1782_sku1100.dtb tegra124-e1791.dtb tegra124-e1923.dtb tegra124-foster-p2530-0384-c00-00.dtb tegra124-foster.dtb tegra124-laguna-pm358.dtb tegra124-laguna.dtb tegra124-loki-02-cell-battery.dtb tegra124-loki-03-cell-battery.dtb tegra124-loki-e2530-a00.dtb tegra124-loki-e2530-a01.dtb tegra124-loki-e2530-a03.dtb tegra124-loki-e2548-a00.dtb tegra124-loki-mods.dtb tegra124-loki-p2530-0000-c00-00.dtb tegra124-loki-p2530-0001-a03-00.dtb tegra124-loki-p2530-0064-c00-00.dtb tegra124-loki-thor195-e2549-a00.dtb tegra124-loki.dtb tegra124-norrin-pm374-0001-c00.dtb tegra124-norrin-pm374-0001-c01.dtb tegra124-norrin.dtb tegra124-thor195.dtb tegra124-tn8-e1765-a03-battery.dtb tegra124-tn8-e1765-a03.dtb tegra124-tn8-e1780-1100-a02-01.dtb tegra124-tn8-e1780-1100-a02-battery.dtb tegra124-tn8-e1780-1100-a02.dtb tegra124-tn8-e1780-1100-a03-01-battery.dtb tegra124-tn8-e1780-1100-a03-01.dtb tegra124-tn8-e1780-1100-a03-battery.dtb tegra124-tn8-e1780-1100-a03.dtb tegra124-tn8-e1784-1100-a00.dtb tegra124-tn8-e1784-1101-a00-01-battery.dtb tegra124-tn8-e1784-1101-a00-battery.dtb tegra124-tn8-e1784-1101-a00.dtb tegra124-tn8-e1922-1100-a00.dtb tegra124-tn8-p1761-1270-a00-battery.dtb tegra124-tn8-p1761-1270-a00.dtb tegra124-tn8-p1761-1270-a02-battery.dtb tegra124-tn8-p1761-1270-a02.dtb tegra124-tn8-p1761-1270-a03-battery.dtb tegra124-tn8-p1761-1270-a03.dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb tegra124-tn8-p1761-1270-a04-e-nobattery.dtb tegra124-tn8-p1761-1270-a04-e.dtb tegra124-tn8-p1761-1470-a00-battery.dtb tegra124-tn8-p1761-1470-a00.dtb tegra124-vcm30_t124.dtb
INSTALLED_DTB_TARGET = tegra124-ardbeg-a03-00-battery.dtb tegra124-ardbeg-a03-00.dtb tegra124-ardbeg-battery.dtb tegra124-ardbeg-e1780-1000-a00-00.dtb tegra124-ardbeg-e1780-1000-a00-01.dtb tegra124-ardbeg-e1780-1000-a03-00-battery.dtb tegra124-ardbeg-e1780-1000-a03-00-powerconfig.dtb tegra124-ardbeg-e1780-1000-a03-00.dtb tegra124-ardbeg-e1780-1000-a03-01.dtb tegra124-ardbeg.dtb tegra124-ardbeg_sata.dtb tegra124-bonaire.dtb tegra124-bonaire_sim.dtb tegra124-e1782_sku1100.dtb tegra124-e1791.dtb tegra124-e1923.dtb tegra124-foster-p2530-0384-c00-00.dtb tegra124-foster.dtb tegra124-laguna-pm358.dtb tegra124-laguna.dtb tegra124-loki-02-cell-battery.dtb tegra124-loki-03-cell-battery.dtb tegra124-loki-e2530-a00.dtb tegra124-loki-e2530-a01.dtb tegra124-loki-e2530-a03.dtb tegra124-loki-e2548-a00.dtb tegra124-loki-mods.dtb tegra124-loki-p2530-0000-c00-00.dtb tegra124-loki-p2530-0001-a03-00.dtb tegra124-loki-p2530-0064-c00-00.dtb tegra124-loki-thor195-e2549-a00.dtb tegra124-loki.dtb tegra124-norrin-pm374-0001-c00.dtb tegra124-norrin-pm374-0001-c01.dtb tegra124-norrin.dtb tegra124-thor195.dtb tegra124-tn8-e1765-a03-battery.dtb tegra124-tn8-e1765-a03.dtb tegra124-tn8-e1780-1100-a02-01.dtb tegra124-tn8-e1780-1100-a02-battery.dtb tegra124-tn8-e1780-1100-a02.dtb tegra124-tn8-e1780-1100-a03-01-battery.dtb tegra124-tn8-e1780-1100-a03-01.dtb tegra124-tn8-e1780-1100-a03-battery.dtb tegra124-tn8-e1780-1100-a03.dtb tegra124-tn8-e1784-1100-a00.dtb tegra124-tn8-e1784-1101-a00-01-battery.dtb tegra124-tn8-e1784-1101-a00-battery.dtb tegra124-tn8-e1784-1101-a00.dtb tegra124-tn8-e1922-1100-a00.dtb tegra124-tn8-p1761-1270-a00-battery.dtb tegra124-tn8-p1761-1270-a00.dtb tegra124-tn8-p1761-1270-a02-battery.dtb tegra124-tn8-p1761-1270-a02.dtb tegra124-tn8-p1761-1270-a03-battery.dtb tegra124-tn8-p1761-1270-a03.dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb tegra124-tn8-p1761-1270-a04-e-nobattery.dtb tegra124-tn8-p1761-1270-a04-e.dtb tegra124-tn8-p1761-1470-a00-battery.dtb tegra124-tn8-p1761-1470-a00.dtb tegra124-vcm30_t124.dtb
============================================
Device tree build tegra124-ardbeg-a03-00-battery.dtb tegra124-ardbeg-a03-00.dtb tegra124-ardbeg-battery.dtb tegra124-ardbeg-e1780-1000-a00-00.dtb tegra124-ardbeg-e1780-1000-a00-01.dtb tegra124-ardbeg-e1780-1000-a03-00-battery.dtb tegra124-ardbeg-e1780-1000-a03-00-powerconfig.dtb tegra124-ardbeg-e1780-1000-a03-00.dtb tegra124-ardbeg-e1780-1000-a03-01.dtb tegra124-ardbeg.dtb tegra124-ardbeg_sata.dtb tegra124-bonaire.dtb tegra124-bonaire_sim.dtb tegra124-e1782_sku1100.dtb tegra124-e1791.dtb tegra124-e1923.dtb tegra124-foster-p2530-0384-c00-00.dtb tegra124-foster.dtb tegra124-laguna-pm358.dtb tegra124-laguna.dtb tegra124-loki-02-cell-battery.dtb tegra124-loki-03-cell-battery.dtb tegra124-loki-e2530-a00.dtb tegra124-loki-e2530-a01.dtb tegra124-loki-e2530-a03.dtb tegra124-loki-e2548-a00.dtb tegra124-loki-mods.dtb tegra124-loki-p2530-0000-c00-00.dtb tegra124-loki-p2530-0001-a03-00.dtb tegra124-loki-p2530-0064-c00-00.dtb tegra124-loki-thor195-e2549-a00.dtb tegra124-loki.dtb tegra124-norrin-pm374-0001-c00.dtb tegra124-norrin-pm374-0001-c01.dtb tegra124-norrin.dtb tegra124-thor195.dtb tegra124-tn8-e1765-a03-battery.dtb tegra124-tn8-e1765-a03.dtb tegra124-tn8-e1780-1100-a02-01.dtb tegra124-tn8-e1780-1100-a02-battery.dtb tegra124-tn8-e1780-1100-a02.dtb tegra124-tn8-e1780-1100-a03-01-battery.dtb tegra124-tn8-e1780-1100-a03-01.dtb tegra124-tn8-e1780-1100-a03-battery.dtb tegra124-tn8-e1780-1100-a03.dtb tegra124-tn8-e1784-1100-a00.dtb tegra124-tn8-e1784-1101-a00-01-battery.dtb tegra124-tn8-e1784-1101-a00-battery.dtb tegra124-tn8-e1784-1101-a00.dtb tegra124-tn8-e1922-1100-a00.dtb tegra124-tn8-p1761-1270-a00-battery.dtb tegra124-tn8-p1761-1270-a00.dtb tegra124-tn8-p1761-1270-a02-battery.dtb tegra124-tn8-p1761-1270-a02.dtb tegra124-tn8-p1761-1270-a03-battery.dtb tegra124-tn8-p1761-1270-a03.dtb tegra124-tn8-p1761-1270-a04-e-battery.dtb tegra124-tn8-p1761-1270-a04-e-nobattery.dtb tegra124-tn8-p1761-1270-a04-e.dtb tegra124-tn8-p1761-1470-a00-battery.dtb tegra124-tn8-p1761-1470-a00.dtb tegra124-vcm30_t124.dtb

That all comes together to form a single image, which is called tegra124-ardbeg.dtb