Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Merge "Fix testcase_3"
  - Fix testcase_3

    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: I336176a9a74486a3f91a36508bb848a90bc6bda2
    Signed-off-by: dimitris.tsiolakis <dmts@intracom-telecom.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index d94a505..b804551 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit d94a5050a1f33c4ef84e546f5d44f731b7c93ab6
+Subproject commit b80455110aaaadafcd416b6a8e39467071cb6a62