In ViewHierarchyAnimator, run onAnimationEnd even if anim was cancelled.

Bug: 344049884
Flag: EXEMPT bugfix
Test: Trigger chipbar, let it disappear, then swipe up to go to all apps
list -> verify you can interact with the search bar at the top of the
list
Test: atest ViewHierarchyAnimatorTest

Change-Id: I62f1ef56af797dc1b26c4f3d663c47ae307ee071