Warn if UDPFS Lottie animation runs when screen is off

We report one Log.wtf if we detect animation frames being rendered as
the screen is off. This happens only on debug and eng builds.

Bug: 420685896
Flag: com.android.systemui.screen_off_animation_guard_enabled
Test: built for tangorpro and verified

Change-Id: I9914d6970e82a23145eaed7326d434d4bc29b2fb