Update git submodules

Update git submodules

* Update docs/submodules/releng from branch 'master'
  - Merge "delete obsolete scenario update code"
  - delete obsolete scenario update code

    1) update scenario will be subsitituted with new methods,
    in this patch delete the obsolete code first to make clean room
    2) test_queryCombination() will fail randomly, in this patch disable
       it first, reopen when problem solved

    Change-Id: I1939876465934ea09894255712057a78f120be71
    Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>