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>

diff --git a/docs/submodules/dmaap/datarouter.git b/docs/submodules/dmaap/datarouter.git
index 8fb505e..ec29915 160000 (submodule)
--- a/docs/submodules/dmaap/datarouter.git
+++ b/docs/submodules/dmaap/datarouter.git
@@ -1 +1 @@
-Subproject commit 8fb505e1eb59f744b7455cde565c30c54896ac72
+Subproject commit ec29915171d5a021180143a7ab69fc6ee986dc75