Adding support to tp-link mr600 v1

Good day to all the brilliant minds behind OpenWRT!

I am still hopeful that the OpenWrt community especially the maintainers will continue the development and testing to support TP-Link Archer MR600 v1.

At the moment we are still experiencing auto reset issues for this modem/router, and TP-Link doesn't have a concrete fix yet. I already tested different versions/releases of stock firmware for this hardware and still had no luck.

Our only chance and savior probably will be from the OpenWrt Firmware.

Reference Issues:

Thanks,