Merge "Fix issue where disconnect cause notification does not fire." into...

Merge "Fix issue where disconnect cause notification does not fire." into rvc-dev am: 73e9d62d am: 426524ee

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/11762949

Change-Id: I9d63e2769fbf2c00d44b33d7de9f512777c31484