Adding OpenWrt support for ZBT Z8102AX

Oh well, try flashing the firmware I sent! It might truly work. Here:

And follow the U-Boot web recovery flashing procedure from ZBT (that is also posted on IceG GitHub):

  1. Fixed computer IP: 192.168.1.100, Subnet mask: 255.255.255.0
  2. Turn off power and keep press the Reset button for a few seconds to connect to the power supply. Wait 20 seconds after connecting the power supply.
  3. Enter the browser page and enter: 192.168.1.1
  4. Submit the updated firmware (in this case, the one above).

Good practice: use a working Ethernet cable and Check the MD5 of the firmware that you sent matches the one you downloaded before flashing.