Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Update the wait_for_classification_rules function

    Two things must be done:

    1 - Be compatible with the new way of doing SFC in ODL Nitrogen
    2 - Be installer independent

    Change-Id: Ibbb3057db30a7c00e92f788bb03e770749e2b255
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 9769cfd..fd243c2 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 9769cfd46f1a4248516d1a87f668e372e45a3086
+Subproject commit fd243c2e0f2f4caa405473f95e8de5d44d862e8c