Merge "Add alpha animation for 180 rotation" into rvc-dev am: 04e81462ce am: ec46cc4326 am: 1029f59f9a am: 6d142dcf1d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12033206

Change-Id: Ia9880e2f2e0987f8bef1bfeaf2ad1a6fb1f1ee6f