Merge "Add OemExtension callbacks support" into main am: e2e3170c54

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3320654

Change-Id: Ic8a6bdcaa835217cbc4822c625fc7976103d1910
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>