[ALSA] sscape: driver extension to 2nd DMA and WSS port

This patch adds second DMA channel and WSS port settings
to the sscape driver. Also, it adds internal card type setting.
The Ensoniq SoundScape VIVO PnP id is added but not handled
yet.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>