Merge "Ignore null action in VcnManagementService$VcnBroadcastReceiver" into main am: c78dd4fc5b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3324495

Change-Id: Ifbd2435a6276da3edec982b75172e46959495242
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>