staging: wlags49_h2: wl_util: converts C99 // comment

This commit converts a C99 // comment to /* */
Signed-off-by: NJohan Meiring <johanmeiring@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlags49_h2/wl_util.h

@@ -93,4 +93,4 @@ void wl_process_updated_record(struct wl_private *lp);
 void wl_process_assoc_status(struct wl_private *lp);
 void wl_process_security_status(struct wl_private *lp);
 
-#endif  // __WL_UTIL_H__
+#endif  /* __WL_UTIL_H__ */