Update git submodules

* Update docs/submodules/sfc from branch 'stable/euphrates'
  - Bug fix: Do not start testing before checking

    JIRA:SFC-113

    We used to check that the ACL and RSP flows were implemented because it took a
    lot of time. However, the new ODL Nitrogen reduced this time a lot and thus we
    must check that the vxlan_tool is up and the HTTP port is up in the server
    before doing any test

    Change-Id: I70219071c7965781b17e80631bf3e2efbfcfe4cd
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index edf1b61..12d6def 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit edf1b61b0cbd33d39ffcfea19592b9555ab1020b
+Subproject commit 12d6defc7c25e51ad0007d8db3c67cc21cc49ee9