[flexiglass] Immediately apply doze display states

Temporary fix that doesn't rely on the scrim controller to update
before sending the display request.

Bug: 433477971
Fixes: 427899033
Test: atest DozeScreenStateTest
Test: enable sceneContainer flag; enable
AoD; block prox sensor for 10s+; observe display
turns off
Flag: com.android.systemui.scene_container

Change-Id: I8fbf7a1c7b59890241b56e6fe6e4ecdc4a22b46f