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: I824da3bce6619aa7da7476365b2e127aacf1d58d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>