Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "fix workspace permission error"
  - fix workspace permission error

    after https://gerrit.opnfv.org/gerrit/#/c/35833/ merged

    still fails https://build.opnfv.org/ci/job/compass-verify-deploy-virtual-xenial-master/360/console

    by checking the host the file was changed to <jenkins root>
    it should be <jenkins jenkins>

    Change-Id: I44bab9aaedaa18fc2c2b654bf156703904c220c7
    Signed-off-by: MatthewLi <matthew.lijun@huawei.com>