Merge "[LE broadcast sink] Add the broadcast sink apis" into tm-dev am: 5f937a70

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18130743



Change-Id: Id17dd2c85cdde329cfa8c59fdbba262313874338
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>