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

Mine will only startup on 36, as that's the only place where it can legally for my locale.

That may not be possible based on your region. In addition, it drops down to 2x2 when in 160mhz. I imagine you could lose throughput with many clients because of mu-mimo groups and the such.