Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Switch to compass4nfv docker repo"
  - Switch to compass4nfv docker repo

    Dynamic inventory support for compass4nfv/compass-tasks-osa
    is ready, switch docker repo.

    Change-Id: I9ad5cd1cc860dd649cf43c6d5f1ea1e7c39e20fc
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index c8a7242..6ad341d 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit c8a7242b5cd9c40e87a6eb98542c506c0307eb75
+Subproject commit 6ad341d71723c9913f0a532a7e31bf0604440994