Moving HDR related logic from HBMController to dedicated clamper

Moving basic HDR brightness calculation logic from HBMController to HDRBrightnessModifier

Bug: b/353474430
Test: manual, atest HdrBrightnessModifierTest, atest BrightnessClamperControllerTest
Flag: com.android.server.display.feature.flags.new_hdr_brightness_modifier
Change-Id: I2deb832af32c0663a7c1dccac40284e957af108e
7 files changed