Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to e6d05b9359582d2a8bddfeb73527d134586410b7
  - The Ve-Vnfm (SOL002) Adapter project
    
    Changed the <version> line in pom.xml to use ${project.version}
    
    Issue-ID: SO-2574
    Signed-off-by: Piotr Borelowski <p.borelowski@partner.samsung.com>
    Change-Id: I5f1014991d3e67c52acdb505eed8c10508404534
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 4159560..e6d05b9 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 41595605a5c8beefd25d72ee5d6df7577a95c545
+Subproject commit e6d05b9359582d2a8bddfeb73527d134586410b7