Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Do not stop tests if exception in testcase

    Change-Id: I9e3db350be4b1ca60d6feaf2961034b50b50deb5
    Signed-off-by: Nikolas Hermanns <nikolas.hermanns@ericsson.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 5ac4720..fbe6937 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 5ac4720011b78fc3878004b974c60d834cf40314
+Subproject commit fbe69370c477a7b01032df701fe96ea90ec60341