Require screen to be off when screen off action light sensor access.

Previously, the check would allow for the sensor to run for this
behavior when not idle or when dozing for aod.

Fixes: 432733048
Test: atest LowLightBehaviorCoreStartableTest#testDoNotSubscribeIfScreenOnNonIdleForScreenOffBehaviorPluggedIn
Flag: EXEMPT bugfix
Change-Id: I3d9eb83a11c41c247e65a5a04b6591d753c863ab