Update git submodules

Update git submodules

* Update docs/submodules/multicloud/framework.git from branch 'master'
  to b852967aa9ebbf7a37e562e562c21b9df76f04d7
  - add support to store all the artifacts into locally

    . deal with VFs and store all the artifacts locally
    . store all artifacts under artifact_list
    . store vfmodule-meta.json file into /data/"VfModuleModelCustomizationUUID"
    . store the service info to service-meta.json file
    . add subplug invoke flow too

    Change-Id: Idca012955c704ed312ae81aa87b35e22af0a4c89
    Issue-ID: MULTICLOUD-513
    Signed-off-by: liboNet <libo.zhu@intel.com>