Adding OpenWrt support for Xiaomi "Redmi Router AX6S"/"Xiaomi Router AX3200"

[gbenamy]

@gbenamy

1.0.50 out of the box, it's trying to upgrade to 1.0.69 but I'm blocking it..

Now it is trying to push 1.0.71

Version 1.0.71 2022.1.19

Xiaomi Router AX3200

What's New

1. New supported languages for web management page: Czech, Greek, Polish, Serbian, Swedish, Hungarian, Romanian
2. Fixed the problem: after enabling WPA3 encryption, some devices could not be connected