conf: USB - add "Cmedia Audio" to USB-Audio.pcm.iec958_device

alsa-project/alsa-lib pull request #122 was opened from jason77-wang:

Otherwise, there will be a "Digital Output(S/PDIF)-Cmedia Audio" from Gnome UI, but there is no this physical interface on the card.

Signed-off-by: Hui Wang hui.wang@canonical.com

Request URL : https://github.com/alsa-project/alsa-lib/pull/122 Patch URL : https://github.com/alsa-project/alsa-lib/pull/122.patch Repository URL: https://github.com/alsa-project/alsa-lib