Merge "[LE Broadcast]Add check for null point exception" into udc-dev am: ac6e91d9 am: 8d7cb5e6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23484432



Change-Id: Iec0e6c683d7bd7318953bbf9a3988732ecba6a4d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>