Update git submodules

Update git submodules

* Update docs/submodules/clover from branch 'master'
  - Merge "Add SDC deploy/clean scripts"
  - Add SDC deploy/clean scripts

    - Added deploy/clean scripts for use in Clover container
    - Deployment of entire SDC scenario
    - Deployment includes istio install for manual sidecar injection
    without TLS authentication (deploy.sh)
    - Added Jaeger tracing and Prometheus monitoring install (view.sh)
    - Exposes NodePort for monitoring/tracing to access UIs outside
    of cluster
    - Clean.sh attempts to remove all of the above

    Change-Id: Id9548a77d71465a814a6e0cb1cbdf02d37235590
    Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>