Update git submodules

* Update docs/submodules/compass4nfv from branch 'master'
  - Merge "Modify deploy/client.py"
  - Modify deploy/client.py

    Bug:
    1. when ansible_print process encounter runtime error
    e.g. ansible.log doesn't exist, whole client.py
    process stucks.
    2. cobbler status encounters error when deploy timeout
    happens.

    Solution:
    1. add ansible_print process alive check in function
    get_installing_progress to exit parent process
    when child process encounter runtime error.
    2. remove unnecessary code in calling cobbler status
    which cause error.

    Change-Id: Ie04d45fd612e7273a6d584e3efb69e1506cdd0f9
    Signed-off-by: huangxiangyu <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index 0bc830f..31e4b61 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit 0bc830f972dc5ae7275285b94d8738d1286f9a0e
+Subproject commit 31e4b613b022ed321472399d52241de3d7421a2f