linux-phytec-ti

ALSA: oxygen: X-Meridian: add S/PDIF source selection

Add a mixer control to select between the on-board and extension board
S/PDIF inputs for the X-Meridian (2G).

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>