Update git submodules

* Update docs/submodules/samplevnf from branch 'stable/euphrates'
  - Docs: Enhance the userguide with CLI command reference

    JIRA: SAMPLEVNF-84

    Update the documents with CLI command reference and Resolve the
    jenkins build warnings.

    Change-Id: I8162a5eb81bf332a06e84dc1f96383fa06fe12c3
    Signed-off-by: Anand B Jyoti <anand.b.jyoti@intel.com>

diff --git a/docs/submodules/samplevnf b/docs/submodules/samplevnf
index 3043bed..0fd0137 160000 (submodule)
--- a/docs/submodules/samplevnf
+++ b/docs/submodules/samplevnf
@@ -1 +1 @@
-Subproject commit 3043bed1b326f08a8360d69529ef38637e721931
+Subproject commit 0fd0137c6059c2e84b8e06597f68e65e62bfca70