Merge "Add core notifications team as owners of internal notification widgets." am: 752040bead am: 6b3ed78bf6 am: b7cd95098f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1571164

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I0c79eefd95bb24714c79145fdc907cbd6f4672e8