Update git submodules

Update git submodules

* Update docs/submodules/doctor from branch 'master'
  - Merge "delete doctor datasource in congress when cleanup"
  - delete doctor datasource in congress when cleanup

    If we delete doctor driver in congress configuration when cleanup,
    the doctor datasource still existed, it will be raise an exeption
    in congress server and the service can't be started.

    Change-Id: Icefde9964229ef3d55af09cc2e81680cb8d19813
    Signed-off-by: dongwenjuan <dong.wenjuan@zte.com.cn>