Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Bug fix: Use opnfv.logger object

    JIRA: SFC-125

    If we don't use the opnfv.logger from functest, logs are not printed when
    exeucting tests through the functest framework

    Change-Id: I6d58ff3977fd94221720eea978e0efde07a576a2
    Signed-off-by: Manuel Buil <mbuil@suse.com>

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
index ca1822c..93e61b0 160000 (submodule)
--- a/docs/submodules/sfc
+++ b/docs/submodules/sfc
@@ -1 +1 @@
-Subproject commit ca1822cf020f1bc0ac2dedb037cdea555859d4e8
+Subproject commit 93e61b0ab4a09c3f4af626489127b02603dc84a7