Merge "audio: Remove dependency on libxml2 from the default implementation" am: 3731b18cfc am: 5a899a388e

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1595307

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I16ea2d8c2b76caec136b0d1bcae5d3eb78c2898f