Modify occluded for shade window

This will count GLANCEABLE_HUB as an occluded state,
and not change the value when transitioning between
occluded states.

Fixes: 359939084
Test: atest NotificationShadeWindowModelTest
Flag: com.android.systemui.use_transitions_for_keyguard_occluded
Change-Id: I29ae4abc688624700a1288e6f9fd2cfe7d38ea9a