arm64: defconfig: Enable DP83TG720 PHY driver

Enable DP83TG720 PHY driver as a module to support TI's DP83TG720
1000BASE-T1 Automotive Ethernet PHY. This is required for the
DP83TG720-IND-SPE-EVM daughter card used with AM642 EVM ICSSG0
interface.

Signed-off-by: Meghana Malladi <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Vignesh Raghavendra <[email protected]>

Author: MeghanaMalladiTI

arch/arm64/configs/defconfig

@@ -420,6 +420,7 @@ CONFIG_REALTEK_PHY=y
 CONFIG_ROCKCHIP_PHY=y
 CONFIG_DP83867_PHY=y
 CONFIG_DP83869_PHY=m
+CONFIG_DP83TG720_PHY=m
 CONFIG_DP83TD510_PHY=y
 CONFIG_VITESSE_PHY=y
 CONFIG_XILINX_GMII2RGMII=m