Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to c99a397d204ab13416c7d81faf48d7fe7b3ba8a2
  - Adding -SNAPSHOT
    
    Change-Id: Ib0c804a57927dd7c83b7d0dba16f6e74d3462706
    Issue-ID: DMAAP-1224
    Signed-off-by: egernug <gerard.nugent@est.tech>
    
diff --git a/docs/submodules/dmaap/datarouter.git b/docs/submodules/dmaap/datarouter.git
index 76a53fb..c99a397 160000
--- a/docs/submodules/dmaap/datarouter.git
+++ b/docs/submodules/dmaap/datarouter.git
@@ -1 +1 @@
-Subproject commit 76a53fb8739f70085cbc5a1ead0521cfe35d3be2
+Subproject commit c99a397d204ab13416c7d81faf48d7fe7b3ba8a2