GUE: Fix a typo

Fix a typo in gue.h
Signed-off-by: NAiden Leong <aiden.leong@aibsd.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/gue.h

@@ -21,7 +21,7 @@
  * |                                                               |
  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  *
- * C bit indicates contol message when set, data message when unset.
+ * C bit indicates control message when set, data message when unset.
  * For a control message, proto/ctype is interpreted as a type of
  * control message. For data messages, proto/ctype is the IP protocol
  * of the next header.