Update git submodules

* Update docs/submodules/compass4nfv from branch 'stable/euphrates'
  - Fix pip version to 9.0.1

    JIRA: COMPASS-593

    OpenStack Ansible install latest pip on
    each contoller node and the latest pip
    (currently 10.0.0b1) doesn't support empty
    package list to be passed into it. Add a
    user config file to fix pip version

    Change-Id: Ic625053ec41356fdf3a8bf89a666ca6574d78fd9
    Signed-off-by: Harry Huang <huangxiangyu5@huawei.com>

diff --git a/docs/submodules/compass4nfv b/docs/submodules/compass4nfv
index f56da9b..10c1877 160000 (submodule)
--- a/docs/submodules/compass4nfv
+++ b/docs/submodules/compass4nfv
@@ -1 +1 @@
-Subproject commit f56da9b36698855ad41c95a33612476be0d3cfcc
+Subproject commit 10c1877374ac8eb2cfbbdf34daeb0049ea4dd67e