Merge "Updating receiver flag requirements and enforcement." into tm-dev am: 2a9b86c1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17511929



Change-Id: I579be4c6dc3b6c683b5af9bcf4e843a8231c8b2d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>