[ALSA] add Asus Xonar driver

Add the snd-virtuoso driver for the Asus Virtuoso 200 chip used on the
PCI and PCI-E models of the Xonar sound card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
3 files changed