msm8x25: Reset backlight gpio during shutdown
msm8x25: Reset backlight gpio during shutdown

Kernel display dirver cannot control backlight level
until first suspend/resume. This is due to backlight
gpio not being reset in bootloader during display
shutdown.

(cherry picked from commit 189061ca09188c232f7265ef0e72b1a71372abb4)

Change-Id: I1cb92179251abd88bb8f01e6fc9b5e4bce326c00

my4ndr0id/android_bootable_bootloader_lk,my4ndr0id/android_bootable_bootloader_lk,my4ndr0id/android_bootable_bootloader_lk,my4ndr0id/android_bootable_bootloader_lk,my4ndr0id/android_bootable_bootloader_lk