Merge "[LE Broadcast]Add check for null point exception" into udc-dev am: ac6e91d9 am: 5ab8c816

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



Change-Id: I842fbfa49a7b3563e2097e3e1132fe2b66b70319
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>