Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Remove the /var/log/osa directory if exist"
  - Remove the /var/log/osa directory if exist

    generate password again to ensure the password is different everytime

    Change-Id: I8c88266e724922301f4411b330d7d7154bfb250e
    Signed-off-by: wutianwei <wutianwei1@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 84f36e9..c8c8a49 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 84f36e9f062c056cbb8ee15c94c4cc208dbc7766
+Subproject commit c8c8a49e2ad96763915b9f9c4f52e68834ba1a1a