[automerger skipped] Merge "Prevent apps from creating blocked channel groups" into sc-dev am: 5769ab47bf am: 89c7ef75a7 am: bfda16a013 am: 8c4f41d03e -s ours

am skip reason: Merged-In I8a27853c7ed05d9dfd38a3142fbbe185946c3992 with SHA-1 074a7f4ccd is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16623717

Change-Id: I054f7e6e224278c504416a92113e0d223623f077