configs: rockchip: Enable ethernet driver on RK3588 boards

Enable DWC_ETH_QOS_ROCKCHIP and related PHY driver on RK3588 boards that
have an enabled gmac node and drop ETH_DESIGNWARE and GMAC_ROCKCHIP for
remaining RK3588 boards.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/rock5b-rk3588_defconfig b/configs/rock5b-rk3588_defconfig
index 3fa65cb..6428aab 100644
--- a/configs/rock5b-rk3588_defconfig
+++ b/configs/rock5b-rk3588_defconfig
@@ -78,9 +78,8 @@
 CONFIG_SPI_FLASH_SFDP_SUPPORT=y
 CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_XTX=y
-CONFIG_ETH_DESIGNWARE=y
+CONFIG_PHYLIB=y
 CONFIG_RTL8169=y
-CONFIG_GMAC_ROCKCHIP=y
 CONFIG_PCIE_DW_ROCKCHIP=y
 CONFIG_PHY_ROCKCHIP_INNO_USB2=y
 CONFIG_PHY_ROCKCHIP_NANENG_COMBOPHY=y