Merge "Add hidden flag for allowing system app to use BAL permission to launch pending intent in background" into tm-dev am: 9cb2bb4e am: 0a444b32 am: 645973a3

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



Change-Id: Iabc593abf7dae1920214572a8b8c163172e6b670
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>