sthal: fix vts test failure am: f32bf0d37d am: 18279771a6

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/knowles/athletico/sound_trigger_hal/+/11716878

Change-Id: Idd06c91f66e68cb075142c00b8fbbf81f8b0ffce