Merge "Guard against missing mac addresses in onWakeupEvent" into udc-dev am:...

Merge "Guard against missing mac addresses in onWakeupEvent" into udc-dev am: 34f6424c am: 5dfbbf34

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22880033



Change-Id: Icd401dbf2d4283b0b4ea540580b367da18420bb2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>