Update git submodules

Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to bf49d552b003072c6bc64ae838a4699c1f4028bd
  - Replace Kind with GroupVersionKind

    Kind is not unique to track resources in Kubernetes
    GroupVersionKind is unique. We are just using that to
    track our data. It is abstracted behind a couple of new
    types for templates and resources.
    This change makes a lot of the old kind based operations
    redundant and simplified.

    Issue-ID: MULTICLOUD-573
    Change-Id: I8f4ded2ba6a0821a8fbd679dc99ce3a44d805524
    Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>
  - Rename plugin reference interface

    Rename the plugin interface to something
    more relevant. KubernetesResource will be
    used to describe resources for creation.

    Issue-ID: MULTICLOUD-557
    Change-Id: I2fff5363b897b968e95b26257d8f26509fb567fd
    Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>