arm64: defconfig: enable the Marvell 10G PHY as a module

The Marvell 10G PHY is present on mvebu platforms. Enable it as a module
so that the network works on these platforms.
Signed-off-by: NAntoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: NGregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm64/configs/defconfig

@@ -204,6 +204,7 @@ CONFIG_STMMAC_ETH=m
 CONFIG_MDIO_BUS_MUX_MMIOREG=y
 CONFIG_AT803X_PHY=m
 CONFIG_MARVELL_PHY=m
+CONFIG_MARVELL_10G_PHY=m
 CONFIG_MESON_GXL_PHY=m
 CONFIG_MICREL_PHY=y
 CONFIG_REALTEK_PHY=m