Merge "Only check pending emergency call if TelephonyConnectionService nonull." into sc-dev am: 985f9204af am: 57605b96c5 am: 4bcfa9a42d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/15019314

Change-Id: I541f847bc67a82c5dc89a3ee2ad6abf78a7e0fca