Update git submodules

* Update docs/submodules/appc.git from branch 'dublin'
  to cc699ebd58f10c947a382ff695a8039f3d0744d8
  - Fix for null dmaap return status

    The setResponse method was returning before actually
    setting the status values in cases where the status
    field was not first initialized. This behavior did
    not make sense since the status field would never be
    initialized in cases where the OutgoingMessage was
    generated using the IncomingMessage.toOutgoing().

    Change-Id: Ib399daf3644095a2eeffe718d0f6a27473b01ee9
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1619
    (cherry picked from commit 62433c522bb1feddc2caa22868192edca0b4082f)

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 7155b80..cc699eb 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 7155b808084ff6e49f6eef01ac7defd9a7754a3a
+Subproject commit cc699ebd58f10c947a382ff695a8039f3d0744d8