Update git submodules

Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 71a2a9c8b8c77cee67571549a06c96ceb3781077
  - Merge "Remove kubeconfigdir. Use a tempfile instead"
  - Remove kubeconfigdir. Use a tempfile instead

    Kubeconfigdir does not need to be a configurable
    parameter. We just create a local file and use that
    to create the config after which it is not needed.

    Issue-ID: MULTICLOUD-614
    Change-Id: I2df561d50b620e24c5ae5266b7200210e0c11caf
    Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>