Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to ec29915171d5a021180143a7ab69fc6ee986dc75
  - Merge "Automation adds release-notes.rst"
  - Automation adds release-notes.rst
    
    Add _release_notes hook to allow automation.
    Fix non valid release notes characters in content.
    
    Issue-ID: CIMAN-376
    Change-Id: Idb397e71241b291523f602d5559d4406684b11da
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed