Support for TP-Link EAP225 Outdoor v3

That would require backporting a large number of changes, since the devicetree sources and scripts were overhauled to add EAP225-Outdoor v3/EAP225 v4 support. If it was just one config file, I might have considered it, but this would affect too many other devices. If you would like packages like LuCI to be included in your images, you could use the imagebuilder to modify the snapshot images.