Update git submodules

Update git submodules

* Update docs/submodules/multicloud/k8s.git from branch 'master'
  to aafc1bde17965df57ad0f88af9b7419c80a146ce
  - Merge "Provide ovn-central-address for local deployments"
  - Provide ovn-central-address for local deployments

    K8splugin served with docker-compose doesn't utilize
    ovn-central-address configured in host environment.
    Function responsible for generating config file has been
    modified to provide this information if available.

    Issue-ID: MULTICLOUD-708

    Signed-off-by: Konrad Bańka <k.banka@samsung.com>
    Change-Id: Ie3c27c68c02a0e206f6447e8c4330e18af942cd8