board/T1040qds: T1040 FMAN ports FM1@DTSEC1 and FM1@DTSEC2 have no PHYs

Freescale's T1040qds board may be configured to have up to
5 FMAN ports (FM1@DTSEC1 to FM1@DTSEC5). From these 5 ports,
2 of them may be fixed-links (FM1@DTSEC1 annd FM1@DTSEC2),
connected to other two ports from an intergrated
VSC9953 L2 Switch (switch ports 8 and 9). These fixed-link
ports have no PHYs attatched, so they don't have a
corresponding MDIO.

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

board/freescale/t1040qds/eth.c

@@ -478,6 +478,7 @@ int board_eth_init(bd_t *bis)
 	for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
 		switch (fm_info_get_enet_if(i)) {
 		case PHY_INTERFACE_MODE_QSGMII:
+			fm_info_set_mdio(i, NULL);
 			break;
 		case PHY_INTERFACE_MODE_SGMII:
 			t1040_handle_phy_interface_sgmii(i);