[automerged blank] Add shell command to trigger ECBM mode Fix EmergencyCallBackMode dialog Overlaid issue 2p: 479dd9eb1c

Blank merge reason: Change-Id I731531d2d717e18e17f035262cd92d58d1f39ff9 with SHA-1 ccbaf745d1 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/13691002

Change-Id: Ib5df72fee40123fdf6e62798cd49fc912391da1c