Add SP board as copy of nit6xlite1g
sp bootscript: configure displays

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: SP board is populated with 512MiB

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: Fix board name in banner

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: Configure USDHC4 as 8-bit eMMC

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: remove HDMI, PRGB support, add LG-9.7 panel

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: remove ethernet support

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: no SGTL5000 on this board

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: no SATA on this board

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: Don't display logo (rotated display)

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: allow gzipped logos up to 6MiB

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: configure OTG_ID pin (GPIO1)

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: fix comments for I2C usage

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
sp: define GPIO & keyboard

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>