mlx4_en: Consider inline packets on completion

Was trying to unmap work queue entries that had inline packets,
so naturally weren't mapped.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/mlx4/mlx4_en.h b/drivers/net/mlx4/mlx4_en.h
index 2e96c7b..08bf321 100644
--- a/drivers/net/mlx4/mlx4_en.h
+++ b/drivers/net/mlx4/mlx4_en.h
@@ -202,6 +202,7 @@
 	u32 nr_txbb;
 	u8 linear;
 	u8 data_offset;
+	u8 inl;
 };