arm: mvebu: turris_omnia: set default ethernet adapter

Set default value for the ethact variable to the WAN port.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/include/configs/turris_omnia.h b/include/configs/turris_omnia.h
index 018f544..290828d 100644
--- a/include/configs/turris_omnia.h
+++ b/include/configs/turris_omnia.h
@@ -122,6 +122,7 @@
 	LOAD_ADDRESS_ENV_SETTINGS \
 	"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
 	"console=ttyS0,115200\0" \
+	"ethact=ethernet@34000\0" \
 	BOOTENV
 
 #endif /* CONFIG_SPL_BUILD */