Merge "Add OemExtension callbacks support" into main am: 3dbf4cabdb

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3113319

Change-Id: I92d1952389a8d35f16f4b0654b48affb4400c488
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>