usb: gadget: udc: remove duplicate & operation

usb_endpoint_maxp() has an inline keyword and searches for bits[10:0]
by & operation with 0x7ff. So, we can remove the duplicate & operation
with 0x7ff.
Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

drivers/usb/gadget/udc/core.c

@@ -912,7 +912,7 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
 		return 0;
 
 	type = usb_endpoint_type(desc);
-	max = 0x7ff & usb_endpoint_maxp(desc);
+	max = usb_endpoint_maxp(desc);
 
 	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
 		return 0;