Update git submodules

Update git submodules

* Update docs/submodules/yardstick from branch 'stable/euphrates'
  - Bugfix: move opnfv_os-odl-fdio_dvr-noha_daily.yaml to 'test_suites' directory

    The opnfv_os-odl-fdio_dvr-noha_daily.yaml test suite file is wrongly put in Yardstick root directory,
    this patch moves this file to the 'test_suites' directory.

    Change-Id: Ib3f75845c7af658dc6f96ac2de737cfbd1faf15a
    Signed-off-by: JingLu5 <lvjing5@huawei.com>
    (cherry picked from commit 14050ee3f720eb6aafaca256fc7bd982ac127cc7)