ALSA: usb-audio: replace /proc/bus/usb by /dev/bus/usb

The /proc/bus/usb devices don't exist anymore, since when we
got rid of usbfs. Those devices are now seen at
/dev/bus/usb.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index cf45bf1..e118bdc 100644
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -472,7 +472,7 @@
 	hw->ops.mmap = usb_stream_hwdep_mmap;
 	hw->ops.poll = usb_stream_hwdep_poll;
 
-	sprintf(hw->name, "/proc/bus/usb/%03d/%03d/hwdeppcm",
+	sprintf(hw->name, "/dev/bus/usb/%03d/%03d/hwdeppcm",
 		dev->bus->busnum, dev->devnum);
 	return 0;
 }