ALSA: wss_lib: do not mess mixer settings during probe

Use the wss_dout function which does not mess
shadowed register values during chip probing.
Otherwise, user ends up with stupid mixer settings
after driver loading.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>