Merge "audio: make sure to set back to AudioMode::NORMAL after the test case" into sc-dev am: 183f6190a8 am: 906100f26d

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15310729

Change-Id: I9348ed121ca3a9341517eab922e2691b76566261