Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - Merge "Update release notes"
  - Update release notes

    Uplifting docs to D-3. Update release-notes
    to reflect the remaining issues we have not
    been able to resolve.

    JIRA: SDNVPN-169

    Change-Id: I5997f1495fc37ecbc06a8c7b8071a7ba7f2c099c
    Signed-off-by: panageo2 <panageo@intracom-telecom.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 3668645..45df38f 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 3668645d06669e0abe44535ee3a4450a0b83709c
+Subproject commit 45df38fe0cd7a604827a5cde6ad6480971b0456b