Add new 'openssh-server' element to ensure that openssh server
is installed and enabled during boot. This is mostly useful for
*-minimal images which do not come with openssh installed and/or
enabled in order to keep a small dependency footprint.
Change-Id: Ide15ee04f5de123dbc8ce4bb56d638d8a167c341
Since we are modifing SSH keys, it should be safe to assume
openssh-server should be installed too.
Change-Id: I17ff05642bb2f0868d4c17819cd91b179068399a
Signed-off-by: Paul Belanger <pabelanger@redhat.com>