usb: fix some references for /proc/bus/usb

Since when we got rid of usbfs, the /proc/bus/usb is now
elsewhere. Fix references for it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 2265573..cb9fbd5 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -318,7 +318,7 @@ void usb_put_intf(struct usb_interface *intf);
  * struct usb_interface (which persists only as long as its configuration
  * is installed).  The altsetting arrays can be accessed through these
  * structures at any time, permitting comparison of configurations and
- * providing support for the /proc/bus/usb/devices pseudo-file.
+ * providing support for the /sys/kernel/debug/usb/devices pseudo-file.
  */
 struct usb_interface_cache {
 	unsigned num_altsetting;	/* number of alternate settings */