Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Merge "Restore peering within testcase3 for Apex"
  - Restore peering within testcase3 for Apex

    Change-Id: I7f3a4892e6ef73fb13512e427fab3e42ff1b69d9
    Signed-off-by: tomsou <soth@intracom-telecom.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 4a6bb97..92e86d8 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 4a6bb979b45c3b7f00f9dcc9519f439b3d405189
+Subproject commit 92e86d8a193af46605ad888bc4f075d006b50a87