prototype: initial audio config

BUG=None
TEST=None

Change-Id: Ica99ff72dea193adef4101b28f3612f058221a39
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/1984884
Reviewed-by: C Shapiro <shapiroc@chromium.org>
Commit-Queue: C Shapiro <shapiroc@chromium.org>
Tested-by: C Shapiro <shapiroc@chromium.org>
Auto-Submit: C Shapiro <shapiroc@chromium.org>
3 files changed