brcm47xx: fix switch port labels for Asus WL500GP V2

The switch port naming in LuCI does not fit the physical numbers
on the front of this device. Since this is confusing, fix it.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
(cherry picked from commit e56e5a454e)

target/linux/brcm47xx/base-files/etc/board.d/01_network

@@ -143,8 +143,12 @@ configure_by_model() {
 		ucidef_set_interfaces_lan_wan "eth0" "eth1"
 		;;
 
+	"Asus WL500GP V2")
+		ucidef_add_switch "switch0" \
+			"0:lan:4" "1:lan:3" "2:lan:2" "3:lan:1" "4:wan" "5@eth0"
+		;;
+
 	"Asus RT-N12"* | \
-	"Asus WL500GP V2" | \
 	"Buffalo WHR-G125" | \
 	"D-Link DIR-330" | \
 	"Motorola WR850G" | \