attribute REMOTE_SUBMIX recording to RECORD_AUDIO_OUTPUT

REMOTE_SUBMIX audioRecords do not use the microphone, so attribute their
usage to RECORD_AUDIO_OUTPUT, instead of RECORD_AUDIO

Test: manual
Fixes: 173797503
Change-Id: Ibc5d09a6b2a90211781076f70516c03ed024cc42
4 files changed