audio VTS: Fix handling of ULTRASOUND sources am: 50ead276 am: 7462ae59 am: 1fa50322

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2088105



Change-Id: I8c9eacfa18d2d34882891576c2d13026914391a7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>