Ensure AllNodesExtraConfig runs before AllNodesDeploySteps
Ensure AllNodesExtraConfig runs before AllNodesDeploySteps

When implementing custom roles, we lost an implicit dependency that
ensured AllNodesExtraConfig is applied before AllNodesDeploySteps,
which causes problems if you need to write hieradata via the
AllNodesExtraConfig hook (some cisco integrations we have in tree
do this, and are now broken because the ordering is no longer ensured.

Change-Id: Ie78ecbb4e135ab7f196867ef9d8d271049a9cd10
Closes-Bug: #1687597

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