Update git submodules

* Update docs/submodules/compass4nfv from branch 'stable/euphrates'
  - Merge "bugfix" into stable/euphrates
  - bugfix

    When not define ceph role in DHA, there are somes issue on config-osa.
    This patch add the judgement to check the parameter define or not.

    Change-Id: If221fd3d02c87fc60f545b44f94043f38e34d283
    Signed-off-by: wutianwei <wutianwei1@huawei.com>
    (cherry picked from commit 660b8bfbb0546322f35f8c7f54d62e1bf5d5dd95)

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index e4a8e01..d5881d7 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit e4a8e01da5834049f210186610a291e9c5f6747d
+Subproject commit d5881d7a53890399b075a95e027b76421e1c8382