dev: gcdb: 8x12 SKUAB hx8389b panel gamma tuning
dev: gcdb: 8x12 SKUAB hx8389b panel gamma tuning

Tuning 8x12 skuab hx8389b panel`s gamma to standard
gamma 2.2.

Change-Id: I976cdb94654be415cee5075f3e088b6ce760a1a8

Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/lktris,M1cha/android_bootable_bootloader_lk,CanarySolutions/little-kernel,M1cha/lktris,Foxda-Tech/argo8-bootable-bootloader-lk,detule/lk-g2-spr,CanarySolutions/little-kernel,CanarySolutions/little-kernel,M1cha/android_bootable_bootloader_lk,detule/lk-g2-spr,CanarySolutions/little-kernel,efidroid/lk,CanarySolutions/little-kernel,Foxda-Tech/argo8-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/argo8-bootable-bootloader-lk,M1cha/lktris,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,efidroid/lk,detule/lk-g2-spr,M1cha/lktris,M1cha/lktris,jsr-d10/android_bootable_bootloader_lk,jsr-d10/android_bootable_bootloader_lk,efidroid/lk,detule/lk-g2-spr,M1cha/android_bootable_bootloader_lk,M1cha/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,Foxda-Tech/argo8-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,jsr-d10/android_bootable_bootloader_lk,detule/lk-g2-spr,M1cha/android_bootable_bootloader_lk