Update git submodules

Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - committer nomination for Tianwei Wu

    Hi committers, I propose to nominate Tianwei as a committer of Compass4nfv.
    He did a great work in OpenStack and Ceph integration and very kind to help others to
    fix the issues of OpenStack-ansible.

    More detailed contributions are listed:
    https://gerrit.opnfv.org/gerrit/#/q/owner:wutianwei1%2540huawei.com+status:merged+projects:+compass4nfv

    Please vote +2 if you agree with Tianwei's nomanation.

    Change-Id: Ic5a534c6617d5c159ac18fa36ae63028d8a1e266
    Signed-off-by: chigang <chigang@huawei.com>