Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Fix keepalived ping address

    JIRA:-

    Replace OSA default address with  ntp_server address.
    OSA will use it to check internet connection.
    Rename some roles that make users confused.

    Change-Id: I4dd7e242e427e5bc3a611450a3bc436e44a8fefe
    Signed-off-by: chigang <chigang@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 95ecdb7..f93fc4f 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 95ecdb773c9fa90f9e4f1f792f5cc5dc8328fd6a
+Subproject commit f93fc4fc70694d21f136ae1599b13fd237018b74