Update Ansible to 2.4.4
Update Ansible to 2.4.4

contains improvements for ceph-ansible

RDO used Ansible from Extras but that one is stuck at 2.4.2
and deprecated, see Ansible in the Extras channel - deprecation notice
https://access.redhat.com/errata/RHSA-2018:1075

Change-Id: I1c8ab9d35156e7eba21e66adaa56abd4235d310f

redhat-openstack/rdoinfo,javierpena/rdoinfo