Merge "[RCS]Use ims config to construct SIP UA header" am: b6074670d5 am: 0c2385213f

Original change: https://android-review.googlesource.com/c/platform/packages/services/Telephony/+/1581543

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I8a43cda605af403ecff58e838b37588f9c5746d9