STAudio ADCIII has the same SSID as Hoontech STDSP24, but requires a
slightly different configuration. This patch allows user to choose
this model via model=staudio option to set the proper configuration
for the board.
Bugzilla: http://bugzilla.suse.com/show_bug.cgi?id=1048934
Signed-off-by: Takashi Iwai <tiwai@suse.de>