Update git submodules

* Update docs/submodules/dmaap/messagerouter/messageservice.git from branch 'master'
  to 6c6dcf40f5d44b94ea4020e971690b09e8bbb5a3
  - Merge "DMaaPAuthFilter refactor"
  - DMaaPAuthFilter refactor

    - added client certificate handling
    - fixed forceAAF flag reading

    Issue-ID: DMAAP-1214
    Signed-off-by: Tomek Kaminski <tomasz.kaminski@nokia.com>
    Change-Id: Icaa80cc40f8c6b50f36096c205d67d14cdbebd2a

diff --git a/docs/submodules/dmaap/messagerouter/messageservice.git b/docs/submodules/dmaap/messagerouter/messageservice.git
index deb28f7..6c6dcf4 160000 (submodule)
--- a/docs/submodules/dmaap/messagerouter/messageservice.git
+++ b/docs/submodules/dmaap/messagerouter/messageservice.git
@@ -1 +1 @@
-Subproject commit deb28f7444d719a27ad75caca57fba136c4495fb
+Subproject commit 6c6dcf40f5d44b94ea4020e971690b09e8bbb5a3