Include ssh known_hosts entries for non-default port
Include ssh known_hosts entries for non-default port

The ssh client no longer appears to accept the regular known hosts entry when
the target is running on a non-default port.
Adding '[host]:*' should fix this, regardless of the port.
However this does not work for the default port so we must include both.

Change-Id: I519ff6053676870dff1bdff60fb1f6b2aa5ee8c9
Closes-bug: #1789452

dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates