Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 908793f04e9a595734a6e0e189b846ed062bfc7d
  - Refactor CsarUtil::getLatestSchemaFilesFromCassandra
    
    Signed-off-by: Francis Toth <francis.toth@yoppworks.com>
    Change-Id: I3f96d76a07fd32bdbd8b59beb5409eab0b0f3aa8
    Issue-ID: SDC-2812
    
diff --git a/docs/submodules/sdc.git b/docs/submodules/sdc.git
index 06b8459..908793f 160000
--- a/docs/submodules/sdc.git
+++ b/docs/submodules/sdc.git
@@ -1 +1 @@
-Subproject commit 06b84593bea8b963266f8d2a8a62dce9feeb2181
+Subproject commit 908793f04e9a595734a6e0e189b846ed062bfc7d