[automerger skipped] Merge "Add unit test for testFilterEmergencyNumbersByCategories" am: b579a785bd am: e82edd8f37 am: ea0c5ea4bd -s ours

am skip reason: Change-Id I2b637c4e79eb90bf9b5946669f30c726b4c01430 with SHA-1 5af42ca61e is in history

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/1535283

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ide420930d834497d67eca20a6dc658d254567ce3