Update git submodules

* Update docs/submodules/compass4nfv from branch 'stable/gambia'
  - Merge "Update docs for Gambia" into stable/gambia
  - Update docs for Gambia

    JIRA: -

    Change-Id: I5c2c404f74b91c12cccd6b085e75415a6f38eb62
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 0a47bc9..2a07946 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 0a47bc97aec08c5cc7c091acdf92e3e29900191a
+Subproject commit 2a079467460c3d12672232607ded589280396c50