ramips: mt7621: Ubiquiti ER-X-SFP: fix gpio numbers for POE enable gpios

With v5.4 kernel a new gpio driver is used.
GPIO numbering has changed so update 03_gpio_switches too.
Signed-off-by: René van Dorst <opensource@vdorst.com>

target/linux/ramips/mt7621/base-files/etc/board.d/03_gpio_switches

@@ -17,11 +17,11 @@ ubnt,edgerouter-x)
 	ucidef_add_gpio_switch "poe_passthrough" "PoE Passthrough" "480"
 	;;
 ubnt,edgerouter-x-sfp)
-	ucidef_add_gpio_switch "poe_power_port0" "PoE Power Port0" "496"
-	ucidef_add_gpio_switch "poe_power_port1" "PoE Power Port1" "497"
-	ucidef_add_gpio_switch "poe_power_port2" "PoE Power Port2" "498"
-	ucidef_add_gpio_switch "poe_power_port3" "PoE Power Port3" "499"
-	ucidef_add_gpio_switch "poe_power_port4" "PoE Power Port4" "500"
+	ucidef_add_gpio_switch "poe_power_port0" "PoE Power Port0" "400"
+	ucidef_add_gpio_switch "poe_power_port1" "PoE Power Port1" "401"
+	ucidef_add_gpio_switch "poe_power_port2" "PoE Power Port2" "402"
+	ucidef_add_gpio_switch "poe_power_port3" "PoE Power Port3" "403"
+	ucidef_add_gpio_switch "poe_power_port4" "PoE Power Port4" "404"
 	;;
 esac