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>
1 file changed