krealloc: Fix kernel-doc comment

It should say "@new_size" and not "@size". Correct that.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: trivial@kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

mm/util.c

@@ -145,7 +145,7 @@ EXPORT_SYMBOL(__krealloc);
  *
  * The contents of the object pointed to are preserved up to the
  * lesser of the new and old sizes.  If @p is %NULL, krealloc()
- * behaves exactly like kmalloc().  If @size is 0 and @p is not a
+ * behaves exactly like kmalloc().  If @new_size is 0 and @p is not a
  * %NULL pointer, the object pointed to is freed.
  */
 void *krealloc(const void *p, size_t new_size, gfp_t flags)