Update git submodules

* Update docs/submodules/sfc from branch 'stable/fraser'
  - Fix symmetric testcase config

    One patch was merged without rebasing and it reverted some accepted changes

    Change-Id: Ia64cef60df1ceb72d8789d122cf1bbb820819aa2
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index e3a3fc3..4640148 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit e3a3fc3613f7868d339186497ee886891cc76538
+Subproject commit 46401486dff9c5b8743fc1192bfc4682a17d5b79