Merge "Add OWNERS to animation test and add mount@ to animation library" into main am: 9efe1cfa0c

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3179940

Change-Id: I69306d811ad14fb2683e33910d6a994897b8ff23
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>