ALSA: Add USB US122L driver

Added a new US122L usb-audio driver.  This driver works together with a
dedicated alsa-lib plugin.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/usb/Makefile b/sound/usb/Makefile
index aa252ef..abb288b 100644
--- a/sound/usb/Makefile
+++ b/sound/usb/Makefile
@@ -8,5 +8,6 @@
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_USB_AUDIO) += snd-usb-audio.o snd-usb-lib.o
 obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-lib.o
+obj-$(CONFIG_SND_USB_US122L) += snd-usb-lib.o
 
 obj-$(CONFIG_SND) += usx2y/ caiaq/