Update git submodules

* Update docs/submodules/compass4nfv from branch 'stable/danube'
  - Merge "Bug fix for onos sfc" into stable/danube
  - Bug fix for onos sfc

    Add the configuration of sfc driver in
    networking-sfc and networking-onos.

    Change-Id: I2f9345d2caa030960e707f15406cb22f6b525dc0
    Signed-off-by: Yifei Xue <xueyifei@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 80a3a5e..667f372 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 80a3a5e0f7cb3d555e07f1e940854624d320ffbd
+Subproject commit 667f37288ec38370c9bd5b463d3756ce4f28299d