configs: meson: use Designware glue driver for Amlogic Meson8b & later SoCs

Use the proper Synopsys DWMAC Meson8b glue to handle the ethernet link type.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
diff --git a/configs/p200_defconfig b/configs/p200_defconfig
index 6efc7bc..c61e974 100644
--- a/configs/p200_defconfig
+++ b/configs/p200_defconfig
@@ -28,7 +28,7 @@
 CONFIG_DM_MMC=y
 CONFIG_MMC_MESON_GX=y
 CONFIG_DM_ETH=y
-CONFIG_ETH_DESIGNWARE=y
+CONFIG_ETH_DESIGNWARE_MESON8B=y
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_MESON_GXBB=y
 CONFIG_DM_REGULATOR=y