Update git submodules

Update git submodules

* Update docs/submodules/dovetail from branch 'master'
  - Push CI results to OPNFV test DB

    In order to use OPNFV test results page to do the ayalysis of all OVP test cases,
    it needs to push all results generated by Dovetail CI jobs to test DB and then
    using http://testresults.opnfv.org/test/#/results to check all results.
    The following data must contain in the POST body:
    1. project_name
    2. case_name
    3. details
    4. installer
    5. scenario
    6. pod_name
    7. build_tag
    8. criteria
    9. start_date
    10. stop_date
    11. version

    JIRA: DOVETAIL-767

    Change-Id: I925ae249e24efd7bfb1c68a69150e9c22f0cdf36
    Signed-off-by: xudan <xudan16@huawei.com>