net/mlx5: Update vport.c to new cmd interface

Do mass update of vport.c to reuse newly introduced
mlx5_cmd_exec_in*() interfaces.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

drivers/infiniband/hw/mlx5/mad.c

@@ -187,8 +187,8 @@ static int process_pma_cmd(struct mlx5_ib_dev *dev, u8 port_num,
 			goto done;
 		}
 
-		err = mlx5_core_query_vport_counter(mdev, 0, 0,
-						    mdev_port_num, out_cnt, sz);
+		err = mlx5_core_query_vport_counter(mdev, 0, 0, mdev_port_num,
+						    out_cnt);
 		if (!err)
 			pma_cnt_ext_assign(pma_cnt_ext, out_cnt);
 	} else {