Merge "Add the limitaion for broadcast name" into udc-dev am: cd16c280 am: 20f0c220

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



Change-Id: I8fc5994e9c7d3c565fa3846ceacebaa22733d05a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>