Use normal rotation while PiP is toggling or active

Seamless rotation of PiP has not been defined. To avoid ugly jump
cut when moving PiP with different orientation, the display is
still frozen to perform normal rotation animation.

Fixes: 156593887
Test: atest DisplayContentTests#testNoFixedRotationWithPip

Change-Id: I6830970ada96023fc5b93afb2f9a917988c93b59