Update git submodules

Update git submodules

* Update docs/submodules/integration.git from branch 'master'
  to 863af9a6582448560ca3d56852056658d0da16eb
  - Remove hardcoded SDNC pod name in vcpe scripts

    Sdnc pod name is set as a property in VcpeCommon
    class and it should be used across the script.

    Also removed hardcoded public net prefix in
    get_pod_node_public_ip and use class property
    where it's assigned.

    Change-Id: I0308c808a764ff114fc43591aed34d9695207fe5
    Signed-off-by: Bartek Grzybowski <b.grzybowski@partner.samsung.com>
    Issue-ID: TEST-212