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

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

Change-Id: I7a4d88957914f14763d218837cdad1b4fe18ff5d