PM: sleep: convert comment from kernel-doc to plain comment

Modify a non-kernel-doc comment to begin with /* instead of /**
so that it does not cause a kernel-doc warning.

power.h:114: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 *      Auxiliary structure used for reading the snapshot image data and
power.h:114: warning: missing initial short description on line:
 *      Auxiliary structure used for reading the snapshot image data and

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Link: https://patch.msgid.link/20250111063107.910825-1-rdunlap@infradead.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

kernel/power/power.h

@@ -110,7 +110,7 @@ extern int hibernate_preallocate_memory(void);
 
 extern void clear_or_poison_free_pages(void);
 
-/**
+/*
  *	Auxiliary structure used for reading the snapshot image data and
  *	metadata from and writing them to the list of page backup entries
  *	(PBEs) which is the main data structure of swsusp.