oxnas: use DHCP by default on ethernet interface (lan)

Signed-off-by: Daniel Golle <[email protected]>

target/linux/oxnas/base-files/etc/board.d/02_network

@@ -5,7 +5,7 @@
 
 board_config_update
 
-ucidef_set_interface_lan "eth0"
+ucidef_set_interface_lan "eth0" "dhcp"
 
 board_config_flush