PixelExperience 10 20200915-0032 Official Polaris Build

Etude kernel:
- Linux 4.9.236
- fpc and goodix fingerprint: use qcom drm notifier instead of the generic one
- fixed xbl_region reserved memory
Reworked screen panel backlight
- in previous builds
  - adjusting brightness slider in the lower range resulted in uneven brightness transition
  - previous builds did not allow screen to dim to the lowest possible value
  - auto-brightness had slow reaction to ambient light changes
- patched frameworks/base to use linear brightness slider instead of the log scale one
- ported gamma-linear conversion to light HAL
- re-calculated auto brightness curve to fit new light HAL changes
- reduced light sensor debounce time to stay in-line with MIUI
- the result:
  - smooth backlight brightness transition when moving brightness slider
  - screen can dim to the lowest possible value the panel allows
  - auto-brightness reacts faster to ambient light changes
  - auto-brightness is no longer jumpy
  - screen dimming caused by no user action has proper transitions

Gapps are included. Vendor and firmware are included. Dirty flash or incremental updates should be fine if you are on my previous PE 10 build.

Please report issues to jjpprrrr. Thanks PE devs for their hard work on the android 10 version.