Handle raw output as low latency use case

Map AUDIO_OUTPUT_FLAG_RAW to use case USECASE_AUDIO_PLAYBACK_LOW_LATENCY
to resolve audio issue in Orange TV app.

Issue: FP4-2005
Issue: FP4-INT#6
Change-Id: Idcac46726584bd15c315237dcb2c11839abe70ef
(cherry picked from commit cabef9fc6fa659f2494e293b2a8194ce72d9d207)
1 file changed