Merge "[LE broadcast sink] Add the broadcast sink apis" into tm-dev am: 5f937a7093 am: dfc0cf8469

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



Change-Id: I796388ae2b92700180f2276de3fcf27259f70b7b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>