Update git submodules

* Update docs/submodules/sfc from branch 'stable/euphrates'
  - Create vnffg providing the neutron_port

    JIRA: SFC-107

    We are submitting the vnffgd with a variable for the neutron_port. Before
    creating the vnffg, we must provide a file with the neutron_port value

    Change-Id: I9994e2baa53f323df17434448d372598c0d94c72
    Signed-off-by: Manuel Buil <mbuil@suse.com>
    (cherry picked from commit 9c11d59035ff1741c5e6d935aa7c2ed23d15f485)

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 3cea8f8..2ce3ecc 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 3cea8f88d68e71e22be478beab8ce94a0d352392
+Subproject commit 2ce3eccae3de3f97c2ad8b2041d1b068d070a6e3