ALSA: sscape: update Kconfig description about SoundScape cards

The SoundScape driver handles more cards then described.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/isa/Kconfig

@@ -377,14 +377,17 @@ config SND_SGALAXY
 	  will be called snd-sgalaxy.
 
 config SND_SSCAPE
-	tristate "Ensoniq SoundScape PnP driver"
+	tristate "Ensoniq SoundScape driver"
 	select SND_HWDEP
 	select SND_MPU401_UART
 	select SND_WSS_LIB
 	help
-	  Say Y here to include support for Ensoniq SoundScape PnP
+	  Say Y here to include support for Ensoniq SoundScape 
 	  soundcards.
 
+	  The PCM audio is supported on SoundScape Classic, Elite, PnP
+	  and VIVO cards. The MIDI support is very experimental.
+
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-sscape.