brcm47xx: fix wgt634u port assignment, broken since openwrt r47866

Signed-off-by: Russell Senior <[email protected]>

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

@@ -124,7 +124,7 @@ detect_by_model() {
 	# Netgear WGT634U exception
 	if grep -sqE 'mtd0: 000(6|a)0000' /proc/mtd; then
 		ucidef_add_switch "switch0" \
-			"0:wan" "1:lan" "2:lan" "3:lan" "4:lan" "5@eth0"
+			"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "5@eth0"
 		return
 	fi