Merge "audio: Fix remote submix configuration and 'prepareToClose'" into main am: 8a4394f8b8 am: 8139fb7098 am: b73bc94140

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2825161

Change-Id: Ia20e2e62f030b4a69b126ffbd3147e89ed89fded
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>