sound: virtuoso: add PCM1796 oversampling control

Add a control to increase the oversampling factor to 128x on cards with
PCM1796 or PCM1792A DACs.

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