Update git submodules

Update git submodules

* Update docs/submodules/clover from branch 'master'
  - Merge "Added toplevel manifests for SDC sample scenario"
  - Added toplevel manifests for SDC sample scenario

    - Added missing k8s manifest yaml files for overall service delivery
    controller scenario - cannot be deployed coherently without this manifest
    - One file for private docker registry and one for opnfv
    public registry
    - Outlined in JIRA ticket CLOVER-16 and validated per
    description
    - Includes ingress rule, community redis pod/service and deployments
    for http-lb (v1/v2), snort-ids, proxy-access-controller,
    and clover-server1-5
    - All above pod/deployment naming matches default container
    configuration
    - Tested with istio manual injection

    Change-Id: Ia03782b38020d744ab00c99adbf4832d15bbd9f3
    Signed-off-by: Eddie Arrage <eddie.arrage@huawei.com>