ar71xx: fix vlan settings for some boards

For AR71XX devices, GMAC1 always connects port 0 of the built-in switch,
as the CPU port.

This patch sets correct vlan for some devices with wrong settings:
a) mark port 0 as CPU port, tagged
b) reverse port order, marking these ports untagged

Signed-off-by: Weijie Gao <hackpascal@gmail.com>

target/linux/ar71xx/base-files/etc/board.d/02_network

@@ -305,7 +305,7 @@ ar71xx_setup_interfaces()
 	wpn824n)
 		ucidef_set_interfaces_lan_wan "eth1.1" "eth0"
 		ucidef_add_switch "switch0" \
-			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "4@eth1"
+			"0@eth1" "1:lan:1" "2:lan:2" "3:lan:3" "4:lan:4"
 		;;
 	dir-825-b1|\
 	nbg460n_550n_550nh|\