Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Adapt the testcases to multiple installers

    Right now the testcases are dependent to only one installer.
    So when we are trying to run the testcases to multiple installers
    the tests are failing.

    This patch make the testcases independent to the installer that they
    run.

    The testcases are running until the point which they hit the tacker
    client commands.They are failing in the tacker client commands
    because we need the new library for the upstream tacker API.

    The testaces have already tested to two installers (Fuel,Apex-ha).

    Also this patch contains the changes which are required for the
    adaptation to the new functest.

    For more information see the Jira tickets [0],[1],[2].

    [0]: https://jira.opnfv.org/browse/SFC-100
    [1]: https://jira.opnfv.org/browse/SFC-101
    [2]: https://jira.opnfv.org/browse/SFC-102

    Change-Id: Id1e5d5c94a65ab8bdea9584fa833bfa0cdec6632
    Signed-off-by: Dimitrios Markou <mardim@intracom-telecom.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 60f2b2c..4a607da 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 60f2b2cf578fbf2a9e0efba4709d4aa6aa8a2f79
+Subproject commit 4a607daea35b21b86d063a9f32a332396ce5681a