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: I91b9ec173dea92eb58933cddafb1d0d08e1815aa
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>