Update git submodules

* Update docs/submodules/appc.git from branch 'master'
  to 57aa614c0bc0cd67eae6ed60cb45d8f7f94ddcd8
  - Fix for jackson annotation

    Fasterxml jackson annotations was not available during runtime
    and was causing json property annotations to be ignored and
    json was not parsing.

    Change-Id: I1cb48e6fc54fc39d24bde1683cb141f1f64c9906
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1613

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 208db98..57aa614 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 208db989045b9a53d9191e7fdac03d266ef73c5c
+Subproject commit 57aa614c0bc0cd67eae6ed60cb45d8f7f94ddcd8