Merge "send slicing config change even to correct registrant" am: 2bab1c10...

Merge "send slicing config change even to correct registrant" am: 2bab1c10 am: c2a8030f am: 47cc6eda am: 3ac5e704 am: 4cf27ff8

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/telephony/+/2059992



Change-Id: I0bdef1d3394b42b1b32871eff6a390991455046d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>