Merge "audio: Match the r_submix configuration to the legacy impl" into main am: 65747f7ccb

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2755271

Change-Id: I480ad6a21f409bdbe86096ee38916ed6e4ba2c1d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>