Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Merge "Updated from global requirements"
  - Updated from global requirements

    Change-Id: I7a975d6cdeae1f7dbf982eca8f8de16fa1bc3d95
    Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index cd1dee3..041ba89 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit cd1dee3f51f98adf8fedb50eaa96f785b3a27fa1
+Subproject commit 041ba89dcfed869b4d03affdf3ef93783ffe7286