Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Merge "Fix testcase_9"
  - Fix testcase_9

    After new Apex release Opendaylight run in container.
    This enhancement identifies the controllers where the
    Opendaylight runs, for both containerized and none
    containerized installations.

    Change-Id: I5821bfa7ddce40eb76d3c2cddfcbc112b058f737
    Signed-off-by: dimitris.tsiolakis <dmts@intracom-telecom.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 7b1b9e2..d94a505 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 7b1b9e2ff57ceb2a75b3d60b95262c12e1823586
+Subproject commit d94a5050a1f33c4ef84e546f5d44f731b7c93ab6