Set SSH wait_for timeouts to be ignored
Set SSH wait_for timeouts to be ignored

This commit adds an ignore_errors entry to the wait_for entries
that check to see if SSH is again responsive after a rebuild.

The net effect of this is the action following may fail if the
image fails to rebuild, or if the ssh key has changed and
host key verfiication has not not been disabled.

The advantage of this is that if the host key tag somehow does
not become loaded into the sshd configuration, but they host keys
are loaded, then after the timeout passes, the playbook will resume
without issues.

Change-Id: I43ce2872f6991651cc15679a762002ea0fdf7eb8

SpamapS/tripleo-ansible,SpamapS/tripleo-ansible