Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to db0d945a6f3f0a446ad47f1faa4c5c63da846327
  - added atleat one assert statement in test case
    
    Issue-ID: APPC-1859
    Change-Id: I0aa503664224aa2f6d1ced5faff59f7156609693
    Signed-off-by: Rupinder <rupinsi1@in.ibm.com>
    
diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index fc61628..db0d945 160000
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit fc616287f11ebe888cbbbf866d983cddbb193f1a
+Subproject commit db0d945a6f3f0a446ad47f1faa4c5c63da846327