Merge "audio: prevent invalid fallback when in tuner passthrough" am: 7c83e3e1a4

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2493577

Change-Id: I62836fd6870412dd976a3fffcbfa37c211b5c341
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>