I'm afraid I have changed my mind, and I have to say no to this. It is *not* a backport, it is a very large patch that nobody understands, it will need to be rebased every time there is new openssh out, we cannot rely on Fedora doing this, as they apply this patch on top of their other patches. Meanwhile, upstream pull request has been stalled for a very long time and just isn't going anywhere. I would suggest you make openssh depend on libressl and find out why it is working everywhere except arm64 - that's the only reason we haven't done it yet.
Alex