Lock Bifrost to Ansible stable-1.9

Due to a change landing in Ansible devel branch, we need to lock
the version to stable-1.9.

Update modules to explicitly define auth_type for compatability with
Ansible 1.9.

This change superceeds: I6dc3842bda19234921cd10fc5836ef8cfdcabb82

Ansible bug: https://github.com/ansible/ansible/issues/11119

Change-Id: Id4002fd95c09cb765ef9268c8ee35f1d9ce90107
Partial-Bug: #1461025

playbooks/library/os_ironic.py

@@ -208,6 +208,7 @@ def _exit_node_not_updated(module, server):
 
 def main():
     argument_spec = openstack_full_argument_spec(
+        auth_type=dict(required=False),
         uuid=dict(required=False),
         name=dict(required=False),
         driver=dict(required=False),

playbooks/library/os_ironic_node.py

@@ -211,6 +211,7 @@ def _check_set_power_state(module, cloud, node):
 
 def main():
     argument_spec = openstack_full_argument_spec(
+        auth_type=dict(required=False),
         uuid=dict(required=False),
         name=dict(required=False),
         instance_info=dict(type='dict', required=False),