Update git submodules

Update git submodules

* Update docs/submodules/ccsdk/distribution.git from branch 'master'
  to 78327d7d3e648a393ce247216e99fb4d966bd79e
  - Fix SSH transport for Ansible server

    with previous configuration of ansible server docker, as there was no
    ssh binary, ansible switched to paramiko and it was causing "cannot
    import name aead".

    Added "ssh" as binary and tried to make paramiko work as some modules
    requires it (such as PAN-OS). but it still fails with the same error...

    Also given "ansible-server" to ansible user as it can create
    PlaybooksTemp (wasn't allowed before).

    Change-Id: Ic4a82e29edcf68b44219cd17dabcf2f6b03dc6c8
    Issue-ID: APPC-1523
    Signed-off-by: Sylvain Desbureaux <sylvain.desbureaux@orange.com>