Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 2d2cfcffbc2032be20034f69f34cc72983b1cfe6
  - added asserts statements in JUnits
    
    Issue-ID: APPC-1859
    Change-Id: I7fbc6a536e0f3fc40d652c3cc402fcb0b9fc7020
    Signed-off-by: Rupinder <rupinsi1@in.ibm.com>
    
diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 6e31b17..2d2cfcf 160000
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 6e31b176be9421c154ac7d164254d9df31d68d56
+Subproject commit 2d2cfcffbc2032be20034f69f34cc72983b1cfe6