conf: HdmiLpeAudio: add support for 3 devices
conf: HdmiLpeAudio: add support for 3 devices

The LPE Audio mode on BYT/CHT supports up to 3 devices, and also supports
IEC61937 passthrough. Add missing alsa-lib configurations so that
apps can use the usual -D'hdmi:CARD=X,DEV=Y,AES0=0x[4|6]' syntax, e.g.

aplay -D'hdmi:CARD=0,DEV=2,AES0=0x6' -c2 -r48000 -fs16_le
ac3_surround_test.spdif

Tested on Zotac PI330 with Onkyo receiver

Signed-off-by: Pierre-Louis Bossart <96763a6a2df29d49945016061de78f7ac9cbfcc5@linux.intel.com>
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

takaswie/alsa-lib,alsa-project/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib,tiwai/alsa-lib,takaswie/alsa-lib,tiwai/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib,alsa-project/alsa-lib,takaswie/alsa-lib