configs: ls1028aqds: enable mdio muxing by default

LS1028A QDS boards have a MDIO MUX and they require the driver for it for
PHYs to work.
Signed-off-by: NAlex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: NPriyanka Jain <priyanka.jain@nxp.com>

configs/ls1028aqds_tfa_SECURE_BOOT_defconfig

@@ -52,8 +52,10 @@ CONFIG_PHY_ATHEROS=y
 CONFIG_PHY_VITESSE=y
 CONFIG_DM_ETH=y
 CONFIG_DM_MDIO=y
+CONFIG_DM_MDIO_MUX=y
 CONFIG_E1000=y
 CONFIG_FSL_ENETC=y
+CONFIG_MDIO_MUX_I2CREG=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y
 CONFIG_DM_PCI_COMPAT=y

configs/ls1028aqds_tfa_defconfig

@@ -58,8 +58,10 @@ CONFIG_PHY_ATHEROS=y
 CONFIG_PHY_VITESSE=y
 CONFIG_DM_ETH=y
 CONFIG_DM_MDIO=y
+CONFIG_DM_MDIO_MUX=y
 CONFIG_E1000=y
 CONFIG_FSL_ENETC=y
+CONFIG_MDIO_MUX_I2CREG=y
 CONFIG_PCI=y
 CONFIG_DM_PCI=y
 CONFIG_DM_PCI_COMPAT=y