Update git submodules

* Update docs/submodules/so.git from branch 'dublin'
  to 3d4a7677036912b5745e4357576e2375a762ee8f
  - Merge "Missing modifications for DistributeTraffic actions" into dublin
  - Missing modifications for DistributeTraffic actions

    Added input parameters for DistributeTraffic and
    DistributeTrafficCheck action

    Change-Id: I423979f6e8a682bff2aaff02bba4d79d2fbe22c8
    Issue-ID: SO-1553
    Signed-off-by: Lukasz Rajewski <lukasz.rajewski@orange.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index f186147..3d4a767 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit f18614794608d81d6a6b868fa2e580e44e7ee6a8
+Subproject commit 3d4a7677036912b5745e4357576e2375a762ee8f