ramips: fix USB LED for Belkin F9K1109v1

Device support for Belkin F9K1109v1 was added using set_usb_led()
although this was removed in 772b27c207 ("ramips: set F5D8235 v1
usb led trigger via devicetree").

Use ucidef_set_led_usbport() instead.

Fixes: f2c83532f9 ("ramips: add support for Belkin F9K1109v1")

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
[rephrase commit title and message, backport]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
(cherry picked from commit 1f455418ef1ea67fda710e1b86a9e021bb4a2413)

target/linux/ramips/base-files/etc/board.d/01_leds

@@ -70,7 +70,7 @@ hiwifi,hc5861b)
 	set_wifi_led "$boardname:green:wlan2g"
 	;;
 belkin,f9k1109v1)
-	set_usb_led "$boardname:green:usb1"
+	ucidef_set_led_usbport "usb" "USB" "$boardname:green:usb1" "usb1-port1"
 	ucidef_set_led_netdev "lan" "lan" "$boardname:blue:wps" "eth0"
 	;;
 broadway)