Update git submodules

* Update docs/submodules/sdnvpn from branch 'stable/fraser'
  - Document updates for Fraser

    Change-Id: I002848374caf28c0e6f4184bc9bd9e87b1918255
    Signed-off-by: nikoskarandreas <nick@intracom-telecom.com>
    Document updates for Fraser

    Fixed wrong release date.
    Removed a closed issue and a reference to it.

    Change-Id: I002848374caf28c0e6f4184bc9bd9e87b1918255
    Signed-off-by: nikoskarandreas <nick@intracom-telecom.com>
    (cherry picked from commit b7221d90abe4a735f606bfbf464e8c6512fc3a67)

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 682a357..e5f1695 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 682a35757b7b46ade55e0548c7df9d3c1c4274a9
+Subproject commit e5f169516a0fc3a811babdb9eefa5a21589d51a1