[fedora-arm] NanoPI R2S - support in Fedora

I'm trying to get Fedora 35 (Server and IoT) working on the NanoPI R2S. It looks like it is in Uboot tools but the board isn't listed as a supported board in arm-image-installer. I added my own board file since it is just a Rockchip SOC. I've add good results doing that with its big brother, the NanoPI R4S. I just ordered a serial cable to see if I can debug this, but I wanted to just see if anyone has had any luck with this board.