Merge "Add test coverage for EmergencyCallHelper." into udc-dev am: 3d4c6eebfd am: 55e0540398

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/23143003

Change-Id: I9e298b541f3199196a01309f9fb493898b2bd39e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>