Adds hasArrSupport api

BUG: 361433651
Test: atest DisplayModeDirectorTest && atest BrightnessObserverTest && atest SettingsObserverTest
Flag: com.android.server.display.feature.flags.enable_has_arr_support

Change-Id: I4a313424ecf5639f90b7323203293e4b1534c590
10 files changed