Update git submodules

* Update docs/submodules/sfc from branch 'stable/euphrates'
  - Create a scenario role

    As discussed with the releng-xci team, each project should have the scenario in
    its repo

    Change-Id: I2cb407892edeeccabf396c7b1c341c78fba2828e
    Signed-off-by: Manuel Buil <mbuil@suse.com>
    Signed-off-by: Trevor Bramwell <tbramwell@linuxfoundation.org>
    (cherry picked from commit 90b3ef7c16d604e53cce22169822878438ced78a)

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 6ac610d..93be25b 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 6ac610dd796ac39a211a39e54af95f810c0ff813
+Subproject commit 93be25b50c49c45b6913202ff5fb009d430f37c6