Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Provide support for local images

    There might be cases where we want to test local images and the image
    location in config.yml is locally

    Change-Id: I29f115de5c80db187ecc2b260c386b377fafd6d2
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index 1ec0623..fc2b313 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit 1ec06237327293d18c494a915faed756188447b0
+Subproject commit fc2b3139c7629a601f1a716aea7e65ec4b5fd414