Process lingering animators after volume tests am: 8c2ced25 am: 40697be0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24296593



Change-Id: Ic6a08d56f0060411fb0d49c26960d2050a50374f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>