ALSA: sscape: add supoort for SPEA Media FX/Reveal SC-600

Move code from the OSS sscape driver in order to support old Soundscape OEM models.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig
index 51a7e37..b90fc16 100644
--- a/sound/isa/Kconfig
+++ b/sound/isa/Kconfig
@@ -377,10 +377,12 @@
 	select SND_WSS_LIB
 	help
 	  Say Y here to include support for Ensoniq SoundScape 
-	  soundcards.
+	  and Ensoniq OEM soundcards.
 
 	  The PCM audio is supported on SoundScape Classic, Elite, PnP
-	  and VIVO cards. The MIDI support is very experimental.
+	  and VIVO cards. The supported OEM cards are SPEA Media FX and
+	  Reveal SC-600.
+	  The MIDI support is very experimental.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-sscape.