Merge "audio: reply correct transferred bytes" am: 2debdc96d8 am: 6dcc82befc

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2429692

Change-Id: I2f6abe00597b80407c0da1282948d19149fa39a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>