xfs: mark xlog_recover_check_summary STATIC

We already did it in the forward declaration, but not for the function
body itself.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

fs/xfs/xfs_log_recover.c

@@ -5825,7 +5825,7 @@ xlog_recover_cancel(
  * Read all of the agf and agi counters and check that they
  * are consistent with the superblock counters.
  */
-void
+STATIC void
 xlog_recover_check_summary(
 	struct xlog	*log)
 {