net/mlx5e: Correct phys_port_name for PF port

Currently PF phys_port_name is named as pfNvf-1 as vport number for PF
vport is 65535.
Correct PF's phys_port name as agreed upon name as pfN.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -1145,6 +1145,8 @@ static int mlx5e_rep_get_phys_port_name(struct net_device *dev,
 
 	if (rep->vport == MLX5_VPORT_UPLINK)
 		ret = snprintf(buf, len, "p%d", fn);
+	else if (rep->vport == MLX5_VPORT_PF)
+		ret = snprintf(buf, len, "pf%d", fn);
 	else
 		ret = snprintf(buf, len, "pf%dvf%d", fn, rep->vport - 1);