Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Fix networking-sfc"
  - Fix networking-sfc

    JIRA: -

    Using networking-sfc 6.0.0.0rc1 to fix package issue

    Change-Id: I29809fd07a38b5cff37b22a99c092db3e8a8f31c
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 4091fbb..77cee7b 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 4091fbbd7193ffef379fc856d7795f8054e95cb0
+Subproject commit 77cee7bf8e6c5e3780dc049e4d57d06036c9ddb5