PM: hibernate: Repair excess function parameter description warning

Function swsusp_close() does not have any parameters, so remove the
description of parameter @exclusive to prevent this warning.

swap.c:1573: warning: Excess function parameter 'exclusive' description in 'swsusp_close'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

kernel/power/swap.c

@@ -1566,7 +1566,6 @@ int swsusp_check(bool exclusive)
 
 /**
  * swsusp_close - close resume device.
- * @exclusive: Close the resume device which is exclusively opened.
  */
 
 void swsusp_close(void)