ALSA: firewire-motu: fulfill missing entries in Kconfig

This is trivial commit but fulfill missing entries in Kconfig for devices
supported by ALSA firewire-motu driver.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200511022540.161363-1-o-takashi@sakamocchi.jpSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/firewire/Kconfig

@@ -150,8 +150,12 @@ config SND_FIREWIRE_MOTU
 	 Say Y here to enable support for FireWire devices which MOTU produced:
 	  * 828mk2
 	  * Traveler
-	  * 828mk3
+	  * Ultralite
+	  * 8pre
+	  * 828mk3 (FireWire only)
+	  * 828mk3 (Hybrid)
 	  * Audio Express
+	  * 4pre
 
 	 To compile this driver as a module, choose M here: the module
 	 will be called snd-firewire-motu.