Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to 4798f0f660de48e43e79626685e8b28bac7f2615
  - Merge "Minor improvement to log statements"
  - Minor improvement to log statements

    Removing some log statements that are cluttering the output.
    Added a log statement to print errors during instantiation.

    Issue-ID: MULTICLOUD-666
    Change-Id: I76ad59c9cb36b5cb999573afec18e6f1adbed4ad
    Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>