Merge "statsd: Add audio device usage protos." into rvc-dev am: 8cda481f am: 0a1901be am: f13efd8b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11602068

Change-Id: Ibf20a11695be4e720a5b9385c888043693b4f1f9