Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "Yamllint Job for Octopus, Pharos, and Anteater"
  - Yamllint Job for Octopus, Pharos, and Anteater

    Pharos, Octopus and Securedlab are listed in the wrong lint check job
    so new patchsets aren't being ran against yamllint.

    Anteater is included in the list of yamllint checks due to it being
    part of Infra-WG and containing yaml files.

    Fixes still need to be done for the securedlab and releng repos before they
    are added at a later time.

    JIRA: INFRA-101

    Change-Id: I696b233e076899107180ed9bbad9a7f7785058d3
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>