Merge "[VTS] Use primary channel to enable RTT responder" into rvc-dev am: cf95a2fe53 am: b80ceb1915 am: 19e6974ac1

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/12109459

Change-Id: Icbfb2a059eac8ffe9cbd5c361af4e75c38c5bd30