Merge "audio: Fix MonoPipe ownership in StreamRemoteSubmix" into main am: 0cdd9a51e4 am: 3e7f0777e4

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/3479190

Change-Id: Idd59d588edd13c4576f3b51d33cb250eb355ec71
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>