board: ls1046afwry: Disable sgmii support

LS1046A SoC serdes protocol 0x3040 supports both sgmi and qsgmii,
however ls1046afrwy supports only qsgmii on board.
So, disable unsupported sgmii on board.

Signed-off-by: Pramod Kumar <pramod.kumar_1@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/board/freescale/ls1046afrwy/eth.c b/board/freescale/ls1046afrwy/eth.c
index 9f8bd92..d38e4d7 100644
--- a/board/freescale/ls1046afrwy/eth.c
+++ b/board/freescale/ls1046afrwy/eth.c
@@ -53,6 +53,8 @@
 	fm_info_set_mdio(FM1_DTSEC10, dev);
 	fm_info_set_mdio(FM1_DTSEC1, dev);
 
+	fm_disable_port(FM1_DTSEC9);
+
 	cpu_eth_init(bis);
 #endif