linux-postmarketos-qcom-msm8953: enable Samsung S6E3FA7 panel module

This also sports:

• fix speed bins on msm8953 and sdm632
• add GPU operating points
• GPU: allow overriding default hardware for OPP
• GPU: disable GPU preemption
• GPU: use OPP for rate changes
• GPU: use OPP for rate changes when available
• cpr3pd: fix reference frequencies on sdm632
• gcc-msm8953: Make OXILI_CX parent of OXILI_GX
• add power domain for GCC
• Update samsung-a6plte tree
• add driver for Samsung S6E3FA7
• fbdev: implement msm_fbdev_dirty