baremetal tweaks

* allow installs to not have hostname overriden with fqdn from inventory
* calico-config no longer requires local as and will default to global
* when cloudprovider is not defined, use the inventory_hostname for cni-calico
* allow reset to not restart network (buggy nodes die with this cmd)
* default kube_override_hostname to inventory_hostname instead of ansible_hostname

roles/network_plugin/calico/templates/cni-calico.conflist.j2

@@ -6,7 +6,7 @@
     {% if cloud_provider is defined %}
       "nodename": "{{ calico_kubelet_name.stdout }}",
     {% else %}
-      "nodename": "{{ ansible_hostname }}",
+      "nodename": "{{ inventory_hostname }}",
     {% endif %}
       "type": "calico",
       "etcd_endpoints": "{{ etcd_access_addresses }}",