ALSA: hda - Disable AA-mix on Sony Vaio S13
ALSA: hda - Disable AA-mix on Sony Vaio S13

The analog-loopback causes the speaker noises even if it's set to zero
volume.  As a simple workaround, just get rid of the loopback mixer.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=873704
Signed-off-by: Takashi Iwai <4596b3305151c7ee743192a95d394341e3d3b644@suse.de>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs