Blocking client thread during animation frames

Since the main UI thread will never block on prior animation
frames if applying a transaction, we need the client thread to be
blocked when it is trying to apply another animation frame.

Bug: 129130064
Test: build, boot, manual, SurfaceFlinger_test
Change-Id: I20c7351d5b6aa13810990099f71d4e1771a2ef7b