ARM64: configs: Activate Internal PHY for Meson GXL

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm64/configs/defconfig

@@ -183,7 +183,10 @@ CONFIG_SMC91X=y
 CONFIG_SMSC911X=y
 CONFIG_STMMAC_ETH=m
 CONFIG_REALTEK_PHY=m
+CONFIG_MESON_GXL_PHY=m
 CONFIG_MICREL_PHY=y
+CONFIG_MDIO_BUS_MUX=y
+CONFIG_MDIO_BUS_MUX_MMIOREG=y
 CONFIG_USB_PEGASUS=m
 CONFIG_USB_RTL8150=m
 CONFIG_USB_RTL8152=m