Update git submodules

Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 49a48a37a76201839c9507a970d639a318ba9d3f
  - Merge "Add test helm chart for testing"
  - Add test helm chart for testing

    Add a test helm chart for testing the end to end
    flow. This chart brings up a service and a deployment.
    The deployment brings up two containers, vault and consul.
    Vault and Consul are brought up in dev mode.
    The helm chart also has a subchart, common, which contains
    templates that are used within the main chart.
    Added an override deployment.yaml which creates only one
    container instead of two
    Fixed plugin.sh and tar file creation steps

    Issue-ID: MULTICLOUD-291
    Change-Id: I7eb10c9f43f8a4e09938139b5e2edee5d59feb3b
    Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>
    Signed-off-by: Victor Morales <victor.morales@intel.com>