[ALSA] caiaq - support for Native Instrument's RigKontrol3

This patch adds support for Native Instrument's upcoming
RigKontrol3 sound interface.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig
index 315360f..7061438 100644
--- a/sound/usb/Kconfig
+++ b/sound/usb/Kconfig
@@ -40,6 +40,7 @@
 	   namely:
 
 	    * Native Instruments RigKontrol2
+	    * Native Instruments RigKontrol3
 	    * Native Instruments Kore Controller
 	    * Native Instruments Audio Kontrol 1
 	    * Native Instruments Audio 8 DJ
@@ -55,6 +56,7 @@
 	  alpha dials and analog pedals on the following products:
 
 	   * Native Instruments RigKontrol2
+	   * Native Instruments RigKontrol3
 	   * Native Instruments Audio Kontrol 1
 
 endmenu