[fedora-arm] Enabling sun8i support in the Fedora kernels

[Peter Robinson]

> I noticed that sun8i support is not enabled in the rawhide arm kernels,
> sun8i / A23 is supported by upstream u-boot now, so it would be good
> to also enable it in the Fedora kernels, then Fedora should just work
> on A23 based devices.

I've already got this on my todo list but was mostly awaiting it to
make it to useful functionality to land rather than just enabling it
for the sake of it.

Peter