Update git submodules

Update git submodules

* Update docs/submodules/dmaap/dbcapi.git from branch 'master'
  to ecd4be66f501c6cbbcd53b302f477bd0c8d17a6a
  - Merge "Added new fields to dr_sub API"
  - Added new fields to dr_sub API

    for ONAP: privilegedSubscriber
    for AT&T: guaranteed_delivery, guaranteed_sequence

    also used this opportunity to move info about properties into README file

    patchset 2: increment version
    patchset 3: more try{}catch around reading fields from JSON .  Boolean fields are fragile.

    Change-Id: Idc7353aaa660c180c1079f9ff61c7d55c41d4170
    Signed-off-by: dglFromAtt <dgl@research.att.com>
    Issue-ID: DMAAP-1033
    Signed-off-by: dglFromAtt <dgl@research.att.com>