Update git submodules

* Update docs/submodules/compass4nfv from branch 'stable/euphrates'
  - Install networking-sfc for non odl-sfc scenarios

    JIRA: -

    Currently we only install networking-sfc for odl-sfc scenario,
    however someone may use native neutron sfc functionality.So we
    propose this patch to add installation of networking-sfc for non
    odl scenarios.

    Change-Id: I4527387626f0c14fb6af135c511d0fd783b8f624
    Signed-off-by: Yifei Xue <xueyifei@huawei.com>
    (cherry picked from commit 989d936c05c4f841efa383676473d2c6cc2cfba5)

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 0ad92ba..967ffc9 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 0ad92ba4a917893aa7897c225214afce955abfcc
+Subproject commit 967ffc953d856673a7bb8a1f01c2eecc20242e31