Max brightness fix in normal brightness mode and HDR content shown

Fixed inconsistency in HBMController and BrightnessRangeControlller current maxBrightness selection
Before: BrightnessRangeController was taking into account NBC only if HBMController mode was HBM_OFF,
However HBMController was selecting transitionPoint as maxBrightness aslo in case e.g. HDR was shown, or low power mode.
Now: BrightnessRangeController takes into account NBC in sync with HBMController

Bug: b/326872826
Test: atest BrightnessRangeControllerTest, manually tested brightness slider behavior
Change-Id: I9071b27769b6a357ca9b2b7f6aa609ab0672467e
(cherry picked from commit 7d313a09)