Set permission for flag update_preferred_audio_device_logic to READ_ONLY. Bug: 377345692 Bug: 407411461 (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f7a81b3a18984bbf76909509f5384b9640a23cad) Merged-In: Ibac4177fc1fd0ac9368d6dc1370a9a99edfe1c74 Change-Id: Ibac4177fc1fd0ac9368d6dc1370a9a99edfe1c74