audio r_submix: Suggest configuration from the peer am: 3b732895a8

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2886671

Change-Id: I6f7aecbe65da1a4ea555e812c640a2b3b43f7fff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>