This is a dongle very much used by RiPi enthusiasts, Open(/Libre)Elec boxes, etc. because it is cheap, small, 300Mbps, 801n, very good sensitivity, but it is not supported here.
Yes, that's the one. I know because it's working on my libreelec system that is runniing kodi on a Rpi3, and I use this dongle with it.
The problem is that it must be ported to LEDE, with a makefile and a config, and then inserted in the source tree and compiled, and I doubt that I can handle this.
But it did not raise any interest on the devs, so I'm just droping this.