Update ansible-lint to 3.4.1

This patch updates all playbooks to ensure compliance
with ansible-lint 3.4.1 and also implements updates
to the distro/pip package install tasks to ensure
that they use the appropriate variables designed for
setting state.

Additionally the utility playbook is set to use upper
constraints when installing packages.

Change-Id: I534388930317daf370cf6c943d62d1e50184ead9

playbooks/os-nova-install.yml

@@ -85,7 +85,7 @@
       tags:
         - always
     - name: Add net/tun device to the compute
-      shell: |
+      command: |
         lxc-device -n {{ container_name }} add /dev/net/tun /dev/net/tun
       delegate_to: "{{ physical_host }}"
       when:
@@ -104,7 +104,7 @@
       tags:
         - always
     - name: Add kvm device to the compute
-      shell: |
+      command: |
         lxc-device -n {{ container_name }} add /dev/kvm /dev/kvm
       delegate_to: "{{ physical_host }}"
       register: device_add