update config.guess and config.sub to support aarch64

[Petr Lautrbach]

Hello,

would it be possible to update config.sub and config.guess to the latest versions (or at least version
from automake-1.13.1) in order to support new architectures based on the ARM 64 bit CPU?


Patch: http://plautrba.fedorapeople.org/openssh/openssh-latest-config.sub-config.guess.patch
Related Fedora bug: https://bugzilla.redhat.com/show_bug.cgi?id=926284


Thanks,

Petr