Update git submodules

Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Compass4nfv virtual deploy support direct connection"
  - Compass4nfv virtual deploy support direct connection

    compass4nfv using nat for VM external network currently,
    this patch add the direct connection method.
    if want to use it ,you need set the NAT_EXTERNAL to false,
    and configure the network.yml according to you environment

    Change-Id: I5a1a2f96b8c32a00eaef4d591c4452b555f0c9a2
    Signed-off-by: wutianwei <wutianwei1@huawei.com>