[ALSA] usb-caiaq - add support for Kore controller 2

Added support for Native Instrument's Kore controller 2. This device has
no audio but MIDI, input devices and ALSA controllers only.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/usb/caiaq/caiaq-device.h b/sound/usb/caiaq/caiaq-device.h
index 310b10e..96a4913 100644
--- a/sound/usb/caiaq/caiaq-device.h
+++ b/sound/usb/caiaq/caiaq-device.h
@@ -8,6 +8,7 @@
 #define USB_PID_RIGKONTROL2	0x1969
 #define USB_PID_RIGKONTROL3	0x1940
 #define USB_PID_KORECONTROLLER	0x4711
+#define USB_PID_KORECONTROLLER2	0x4712
 #define USB_PID_AK1		0x0815
 #define USB_PID_AUDIO8DJ	0x1978