Merge "Enforce the event EVENT_DISPLAY_SOS_MESSAGE sent only for emergency...

Merge "Enforce the event EVENT_DISPLAY_SOS_MESSAGE sent only for emergency call" into udc-dev am: d9e1359d am: 8bcfb4ad

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/21590931



Change-Id: Iea8d32cf188885ccffac43b52850c7d31cb9f99b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>