Merge "Add adhoc conference APIs to RemoteConnection and RemoteConnectionService." am: 329c6ff777 am: e40cfa60de am: 6a55cd1644 am: 300b3cce72 am: f98b0c5eb1

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1388908

Change-Id: I3fc6ba1492996d41530461452e83759a490adc6d