enable Ironic password for keystone auth
enable Ironic password for keystone auth

The current version of the ironic-source.yaml uses AdminPassword, it
should use the ironic users password and not the admin user password.
The patch corrects an authentication error by adding IronicPassword
to ironic-source.yaml file.

Change-Id: Idbe4950bb3026e2201ddfddc4b58c2bf98972be9

bcrochet/tripleo-heat-templates,openstack/tripleo-heat-templates,rdo-management/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,wyg3958/tripleo-heat-templates,wyg3958/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/tripleo-heat-templates,openstack/tripleo-heat-templates,rdo-management/tripleo-heat-templates,bcrochet/tripleo-heat-templates,trozet/opnfv-tht,redhat-openstack/tripleo-heat-templates,bcrochet/tripleo-heat-templates,redhat-openstack/tripleo-heat-templates