Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 5a83a8dc3dd5359b343f6dba52e0ca6907f58a5a
  - Document OJSI-185 vulnerability
    
    Issue-ID: OJSI-185
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I6cbe6a6cb0129bd4ac6ccba35cf018f4a04f80e5
    
diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 706cd5c..5a83a8d 160000
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 706cd5cf82e16d10d18732fc8df2e3efea7eac87
+Subproject commit 5a83a8dc3dd5359b343f6dba52e0ca6907f58a5a