Merge "audio: save vndbinder threads" am: 26ebfab53f

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2434045

Change-Id: Ib730acbab10c953ebb8ec9789d92c471401d8766
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>