Revert^2 "Remove flag com.android.media.flags.enable_output_switcher_personal_audio_sharing from trunk_staging." This reverts commit f23a35430c80d5c24ef96c229faac5d529903f65. Reason for revert: bug should be fixed by ag/34132590 Bug: 425495857 Change-Id: I12af8950843ccd5d9a43dfb0c83157f17346e920