Merge "r_submix: add owners file" am: 593bff82da am: eba0d7f70e am: a66b1a2486

Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/1935497

Change-Id: Ib2386d226b0708a6ed0118bad02189d3ac33a4ba