Merge "Add unlocked to checkmark animation for coex." into udc-dev am: 720e8081

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23504736



Change-Id: Icb2f70e53552f5b2d33f66c799a2878da04bfe6b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>