Update git submodules

* Update docs/submodules/sdnvpn from branch 'master'
  - remove extra specs for the flavor

    It has problem in booting up VMs which are with custom flavor
    configured. So removing extra specs from the flavor which
    anyway is not needed.

    Change-Id: I38fe1449ea585a3a6db95a7f21fd1d3fca0f528e
    Signed-off-by: Periyasamy Palanisamy <periyasamy.palanisamy@ericsson.com>

diff --git a/docs/submodules/sdnvpn b/docs/submodules/sdnvpn
index 90204b0..cc10bd4 160000 (submodule)
--- a/docs/submodules/sdnvpn
+++ b/docs/submodules/sdnvpn
@@ -1 +1 @@
-Subproject commit 90204b0850c38e2c9eeb2cbb4dfccc2053beafb4
+Subproject commit cc10bd492affb033b68d3b8f4cb1d8c9d554f995