Merge "Add telephony shell command for testing barring" into sc-dev am: 9bcb5cc9da am: c954735146

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/14458384

Change-Id: Ifc0238d541691e913fbce46c1f7caf24d51889b0