linux-phytec-fsl

ALSA: Add documentation about HD-audio DP MST

Add the documentation about HD-audio DP MST:
1. Overview
2. Jack

Others will be added later.

Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>