Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 460b2c35e214b9422e9313a4bad8253669791ebf
  - Merge "Fixed, simplified and tested AuthorizationHeadersProvider (+small changes in poms)"
  - Fixed, simplified and tested AuthorizationHeadersProvider
    (+small changes in poms)

    Ve-Vnfm (SOL002) Adapter project

    Issue-ID: SO-2574
    Signed-off-by: Piotr Borelowski <p.borelowski@partner.samsung.com>
    Change-Id: I480ac1d5b46aae5a9d4db8249d98c186b59fd12f

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index dbf7a49..460b2c3 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit dbf7a49c67050dbd132146e4fa230bb5723dbc7d
+Subproject commit 460b2c35e214b9422e9313a4bad8253669791ebf