Update git submodules

Update git submodules

* Update docs/submodules/dmaap/dbcapi.git from branch 'master'
  to d2e4071456ec1d8b64aa18fdeeeb30f85e173d9a
  - Merge changes from topic 'required_checker'

    * changes:
      Extract required(...) method
      Extract class StopWatch from ApiService

  - Extract required(...) method

    Change-Id: I9a2a02aabd6b90c601f3bcd2cdd708e9af70d819
    Issue-ID: DMAAP-1107
    Signed-off-by: piotr.karas <piotr.karas@nokia.com>
  - Extract class StopWatch from ApiService

    Issue-ID: DMAAP-1109

    Change-Id: I05f706b8f2e7fe0ceb632ddb008c897b32f576b2
    Signed-off-by: Pawel <pawel.kasperkiewicz@nokia.com>