Merge "Add test coverage for EmergencyCallHelper." into udc-dev am: 3d4c6eebfd am: f6e43809c6 am: 60b9fef32c am: 45bbba1058

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

Change-Id: I691d33fe08995cf9f80518093fc2af18faadcf84
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>