usb: interface authorization: Declare authorized attribute

The attribute authorized shows the authorization state for an interface.
Signed-off-by: NStefan Koch <stefan.koch10@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

include/linux/usb.h

@@ -178,6 +178,7 @@ struct usb_interface {
 	unsigned needs_altsetting0:1;	/* switch to altsetting 0 is pending */
 	unsigned needs_binding:1;	/* needs delayed unbind/rebind */
 	unsigned resetting_device:1;	/* true: bandwidth alloc after reset */
+	unsigned authorized:1;		/* used for interface authorization */
 
 	struct device dev;		/* interface specific device info */
 	struct device *usb_dev;