Make auto-brightness modes generic

Bug: 288481949
Bug: 293613040
Test: adb shell dumpsys display
Test: atest AutomaticBrightnessControllerTest
Test: atest BrightnessMappingStrategyTest
Test: atest DisplayManagerServiceTest
Test: atest DisplayPowerControllerTest
Test: atest DisplayPowerController2Test
Change-Id: Ie54af4fc38d179b290ce2f5021435a912db6c32a
12 files changed