Copy audioConfig according to config discriminator am: d7f04f9f06 am: d06c0fc642 am: 9ab9f49994 am: f6a4b14d4d

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1497981

Change-Id: Ie9dcc91eee6eb72c1d826c9bae029004f0ef81c9