Update git submodules

* Update docs/submodules/sfc from branch 'master'
  - Clean up our utils.py
    
    Utils.py was getting messy. This patch divides it into three different files:
    
    * test_utils.py
    * odl_utils.py
    * openstack_utils.py
    
    The tacker library is integrated into openstack_utils.py
    
    Change-Id: I310949d1cee49b6aa1c9b3396bf6d6ca458cbaac
    Signed-off-by: Manuel Buil <mbuil@suse.com>
    

1 files changed, 0 insertions, 0 deletions

diff --git a/docs/submodules/sfc b/docs/submodules/sfc
-Subproject 8814891148390d427c22e583b2d7451dbd60019
+Subproject d4757d239155cbd21ce45b656469c10d67cdf56