IB/mlx4: Use correct order of variables in log message

There is a mis-order in mlx4 log. Fix it.

Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>