change logic for determining emergency number am: 65e5f676 am: eedec7dc...

change logic for determining emergency number am: 65e5f676 am: eedec7dc am: 68f0432d am: 8bab8e9a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/18284852



Change-Id: I668672443b8c89a0269c92b1d23454597c788cf9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>