Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Improve ansible tasks and fix license headers

    This patch does two things:
    1. improve the ansible tasks:
       - register Openstack as VIM
       - create osmrc file
       - install OSM (master)
    2. fix license headers in unit tests

    installer-type:osa
    deploy-scenario:os-odl-sfc_osm

    Change-Id: I02297dae2b0108397541cedeb2f47183f1df99fc
    Signed-off-by: Venkata Harshavardhan Reddy Allu <venkataharshavardhan_ven@srmuniv.edu.in>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 59697c6..6c11cca 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 59697c6c0425b3179f0a51e92de7dc035c1ff38c
+Subproject commit 6c11ccaa5e9f036a1b56926d80aaccb3dc5e3d78