Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Make the storage use ceph"
  - Make the storage use ceph

    1. ceph.yml define which host install ceph-mon and ceph-osd
    2. user_ceph.yml define variables of ceph and cinder backend
    3. user_variables_ceph.yml.j2 define variables of ceph for user

    Change-Id: Iafea998f4603eb4b5c15a26f2387e6cb04c35d4c
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 7afdbb1..5f2c780 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 7afdbb1351729dffa7d4bba7a2c505ef707d10c9
+Subproject commit 5f2c78057f1a15ca90c5c25025f713a56a48dfc6