Merge "Add the limitaion for broadcast name" into udc-dev am: cd16c28013 am: d7a6d295cb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23532377

Change-Id: I5484a5c0f24988f7afc88e370a8c0659ff99fce8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>