target: msm8226: add necessary delay before backlight on
target: msm8226: add necessary delay before backlight on

SSD2080M needs delay between TG and backlight on, to make
sure screen content is updated to IC correctly. This helps
to address some unexpected artifacts during power on.

CRs-fixed: 569455
Change-Id: I275432089c5a92395e73fa025293b9f225dc5d46

Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,efidroid/lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,M1cha/lktris,efidroid/lk,M1cha/lktris,CanarySolutions/little-kernel,CanarySolutions/little-kernel,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/lktris,M1cha/lktris,Foxda-Tech/argo8-bootable-bootloader-lk,CanarySolutions/little-kernel,M1cha/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,M1cha/lktris,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,efidroid/lk,Foxda-Tech/argo8-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk