Net::SSH::Perl is out of date in the Fedora git repos. The version
currently supported in Fedora fails to connect to most modern sshd's,
and updating to the new version would require adding several new perl
packages to Fedora. Instead, this patch switches to using
Net::OpenSSH, whose current version in Fedora works properly *EXCEPT*
that it is missing the line "Requires: perl(IO:TTy)" in its specfiles
(I filed https://bugzilla.redhat.com/1542666

 requesting that fix to be
applied to Fedora git repos. For now, just run "dnf install
perl-IO-Tty" separately)

NB: prior to this patch, Net::SSH::Perl was required, but had no
Required: line in the specfile, so you would have to install it by
hand. If you had done that, you can probably now dnf erase it.

Signed-off-by: Laine Stump <laine@laine.org>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>