Merge "Add new overridable annotation to platform compat" am: 458515e464 am: 899cd8920b am: 9f7867cee2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1540124

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If74ec1464e1a52a14ab1aeb81ca676622a52a72d