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 am: 4a8e6e45

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



Change-Id: I71b6ec3fdbc7d704939f62ad1b1db20248405ee3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>