[ALSA] virtuoso: move some code to xonar_common_init()

Move the code that is common to all Xonar models to a separate function,
and make it more generic in preparation for another model.

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