[automerger skipped] audio: Fix handling of relative XML include paths in VTS am: 420a5407 am: 487e99b8 -s ours

am skip reason: Merged-In Id595c9fd30be378d76387ee55a8937e0bf28d1cd with SHA-1 13c67965 is already in history

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1760745

Change-Id: I5f1a55e73cfbdc16d46fadaf73ac87cea6fbf709