lantiq: VGV7519 - add vlan support

Add the lantiq,switch property to enable vlans and setup them up.

Signed-off-by: Mathias Kresin <dev@kresin.me>

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

@@ -130,7 +130,8 @@ BTHOMEHUBV5A)
 VGV7519)
 	lan_mac=$(mtd_get_mac_binary board_config 22)
 	wan_mac=$(macaddr_add "$lan_mac" 1)
-	ucidef_set_interface_lan 'eth0'
+	ucidef_add_switch "switch0" \
+		"4:lan:1" "2:lan:2" "1:lan:3" "0:lan:4" "6t@eth0"
 	;;
 
 VGV7510KW22)

target/linux/lantiq/dts/VGV7519.dtsi

@@ -227,6 +227,7 @@
 		#size-cells = <0>;
 		reg = <0>;
 		mac-address = [ 00 11 22 33 44 55 ];
+		lantiq,switch;
 
 		ethernet@0 {
 			compatible = "lantiq,xrx200-pdi-port";