Update git submodules

* Update docs/submodules/msb/java-sdk.git from branch 'master'
  to 5006a87f623c7036509bfe58e8440882a3fa9225
  - Update css file name in conf.py
    
    ribbon.css is the correct name of the css file.
    
    Issue-ID: CIMAN-376
    Signed-off-by: Jessica Wagantall <jwagantall@linuxfoundation.org>
    Change-Id: I4109f2d2670d41203a45375f19b71fcd71995634
    
diff --git a/docs/submodules/msb/java-sdk.git b/docs/submodules/msb/java-sdk.git
index 6ea20ef..5006a87 160000
--- a/docs/submodules/msb/java-sdk.git
+++ b/docs/submodules/msb/java-sdk.git
@@ -1 +1 @@
-Subproject commit 6ea20efe647594fdadc52c8aaa9229a93108b69d
+Subproject commit 5006a87f623c7036509bfe58e8440882a3fa9225