Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to dee85010b8a39ee361115781f387064c9722d9b7
  - Update Ubuntu 18 image for vagrant
    
    Issue-ID: MULTICLOUD-474
    Signed-off-by: Ritu Sood <ritu.sood@intel.com>
    Change-Id: I77709f4b05d7501fa6faf41187fbe0bf6e189b3b
    
1 file changed