tuna: remove screen timeout overlay

Change-Id: I91fafab5886d7022c24d5d966f521ea11d35ba14
tuna: cmhw: add support for adaptive backlight

Change-Id: I638d313afbee50484dbe53e35808b0cbe3262cbc
tuna: commonize what we can (1/4)

board-info.txt, bluetooth device name, ro.bq.gpu_to_cpu_unsupported.

Change-Id: I151ba8a7bd0c9b2a0ccf23fc97935bd63702047d