ar71xx: Fix switch config on Mikrotik RB450/G

This patch fixes the ethernet switch initial config for Mikrotik RB450 and RB450G.
The previous version wrongly changed the RouterStation Pro config. This one creates a specific config for the RB450G and leaves the RouterStation Pro unchanged.

Signed-off-by: João Chaínho <joaochainho@gmail.com>

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

@@ -345,9 +345,13 @@ ar71xx_setup_interfaces()
 	rb-450)
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		ucidef_add_switch "switch0" \
-			"0:lan" "1:lan" "2:lan" "3:lan" "5@eth1"
+			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "5@eth1"
+		;;
+	rb-450g)
+		ucidef_set_interfaces_lan_wan "eth1" "eth0"
+		ucidef_add_switch "switch0" \
+			"0@eth1" "1:lan:1" "2:lan:4" "3:lan:3" "4:lan:2"
 		;;
-	rb-450g|\
 	routerstation-pro)
 		ucidef_set_interfaces_lan_wan "eth1" "eth0"
 		ucidef_add_switch "switch0" \