Update git submodules

Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to c36523ba9887990b8a785266fd5d688e4888d67d
  - Unable to update VSP (heat template) version in VF

    This seems to fix the issue, we can still
    onboard CBA at VF level and the CBA get included
    in the distributed CSAR under the directory
    Artifacts/*/Deployment/CONTROLLER_BLUEPRINT_ARCHIVE/
    as expected

    Issue-ID: SDC-2892
    Signed-off-by: Sebastien Premont-Tendland <sebastien.premont@bell.ca>
    Change-Id: Ie9f9cd7b8d2cf5eb3ff3c41a4b04eedd788265a6