ipq806x: sort entries in lib/upgrade/platform.sh

Apply alphabetic sorting like in the other files.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ipq806x/base-files/lib/upgrade/platform.sh

@@ -24,9 +24,6 @@ platform_do_upgrade() {
 	qcom,ipq8064-ap161)
 		nand_do_upgrade "$1"
 		;;
-	zyxel,nbg6817)
-		zyxel_do_upgrade "$1"
-		;;
 	edgecore,ecw5410)
 		part="$(awk -F 'ubi.mtd=' '{printf $2}' /proc/cmdline | sed -e 's/ .*$//')"
 		if [ "$part" = "rootfs1" ]; then
@@ -52,6 +49,9 @@ platform_do_upgrade() {
 		MTD_CONFIG_ARGS="-s 0x200000"
 		default_do_upgrade "$1"
 		;;
+	zyxel,nbg6817)
+		zyxel_do_upgrade "$1"
+		;;
 	*)
 		default_do_upgrade "$1"
 		;;