Update dtsbuild.sh

Hi

I checked your robocapedts entry and didn't see the DM-GPIO-Test-00A0 listed. Saw that BB-SPI0-01-00A0.dts, BB-SPI0-01-00A0.dtbo, RoboCapeGpio-00A0.dtbo and RoboCapeGpio.dts were missing in the build script, so I figured they must be added

thank you