Merge "Ensure that animated key button drawable has callbacks" into rvc-dev...

Merge "Ensure that animated key button drawable has callbacks" into rvc-dev am: acf07500 am: 9542a56d am: 7bae7f27

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12145664

Change-Id: I0c969975f52e43dd89a162ea3182e3af50121982