Merge "Add hidden flag for allowing system app to use BAL permission to launch pending intent in background" into tm-dev am: 9cb2bb4e2a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18486605

Change-Id: I7037275612ae249a378c4cd0254f4e59fc230ad3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>