Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to 7704d3079906a4fb51cd58f12d56bd3100fca6b2
  - Add AAF certs with year duration to DR
    
    Remove console logs during unit tests
    Disable checkstyle warnings
    
    Change-Id: Ie57e792e9616fe348be1931aacc274d28a9798bc
    Issue-ID: DMAAP-1143
    Signed-off-by: econwar <conor.ward@est.tech>
    
diff --git a/docs/submodules/dmaap/datarouter.git b/docs/submodules/dmaap/datarouter.git
index b17225c..7704d30 160000
--- a/docs/submodules/dmaap/datarouter.git
+++ b/docs/submodules/dmaap/datarouter.git
@@ -1 +1 @@
-Subproject commit b17225c0cd21e01aa4131706cff0c8cd2c9a6e42
+Subproject commit 7704d3079906a4fb51cd58f12d56bd3100fca6b2