Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "set the kubernetes variable"
  - set the kubernetes variable

    According to DEPLOY_SCENARIO, we set different nfvi and distro.

    Change-Id: I3082923fc7d4a1309c1de83f988f831d67c10d64
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 6f811d4..4c4ac1b 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 6f811d4cc23e46b24aa8e2e358e01ed0dbf29259
+Subproject commit 4c4ac1bc245b2ce119cb7f1ea27a0dfe83f26c0c