Merge "[VTS] Use primary channel to enable RTT responder" into rvc-dev am: cf95a2fe53 am: 3acf2015e0

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

Change-Id: I2b4a89bf9ab7ef10bf041d8e2ce26eb1a5304937