Merge "Add test coverage for EmergencyCallHelper." into udc-dev am: 3d4c6eebfd am: 55e0540398 am: 4ebd144bcb

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

Change-Id: Idc0b11f463808ebbea8514b7b4fe9b2c71bdcd9a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>