Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Merge "Add iteritems() when parsing dict in Python 2.x"
  - Add iteritems() when parsing dict in Python 2.x

    The SFC code still runs with Python 2.x version and
    that means that when a dictionary is getting parsed
    it should use the iteritems() function.

    Change-Id: I44f1c9cb916e7b76b277e376c8f524a99aa01f26
    Signed-off-by: Dimitrios Markou <mardim@intracom-telecom.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index b392a77..74e3d10 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit b392a77efbd543495422555f6736d5734e482413
+Subproject commit 74e3d10a14162d526a520534bc64ac3633a6a289