Merge "Add more logs around setConferenceHost" into rvc-dev am: 30f41688f7 am: 3b93ffadee am: 9843682c41 am: 21268ec3b4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telephony/+/11711606

Change-Id: I03f57daa14bcfb543b4b8c9edad61c542ef1cc70