Update git submodules

* Update docs/submodules/dmaap/datarouter.git from branch 'master'
  to 0312e2224f81619699151718622b44db699bcce8
  - Merge "small, multi-platform docker images"
  - small, multi-platform docker images
    
    Issue-ID: INT-907
    Issue-ID: INT-908
    Issue-ID: INT-909
    
    Change-Id: I2df861f0098588ec9b394b501af2de6f7559c213
    Signed-off-by: sandovalfr <frank.sandoval@oamtechnologies.com>
    
diff --git a/docs/submodules/dmaap/datarouter.git b/docs/submodules/dmaap/datarouter.git
index 0df559b..0312e22 160000
--- a/docs/submodules/dmaap/datarouter.git
+++ b/docs/submodules/dmaap/datarouter.git
@@ -1 +1 @@
-Subproject commit 0df559b37da83b4730140f63f0743fae082d4983
+Subproject commit 0312e2224f81619699151718622b44db699bcce8