Merge "Handle emergency registration failure case" into udc-dev am: 47bcde88

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/22626472



Change-Id: I2ddec8440a69413ce7f1b8a2cc0edda3bfc3f2ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>