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

[remittor]

@thorsten97

Can we use the unpopulated pins left next to the chip for the soldering?

@zfgeng

It said there was interference on the PCB circuit board. It was necessary to disconnect the VCC at pin 8 to identify the chip. I didn't try. Of course, you can try it.