Setup tftp for all scenarios
Setup tftp for all scenarios

Currently tftp is only set up when ironic is setup for standalone
usage. This is incorrect. tftp is required for all use cases.

Change-Id: Ic47b71c0d9113d128d547247045a03cad4c20c82

juledwar/openstack-ansible-os_ironic,mrda/openstack-ansible-ironic,mrda/openstack-ansible-ironic,juledwar/openstack-ansible-os_ironic