Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Remove the pike specific files

    We are already preparing for Gambia release and that means Openstack
    Queens for the traditional release track. Therefore, we can remove
    the specific configs for Openstack Pike

    Change-Id: Ib49a53e73ae1020aaead8a897dff8733147d87ac
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 37d5bca..742a123 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 37d5bca7cc52709e89d434345560cfe1d90e2e52
+Subproject commit 742a1237a5511930ff2726819e6fd2a320e7fd06