Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to ac42fe6ee5e461c3053d40f23cc62882b6a59fe5
  - Merge "AAI id mapping in SOL002 Adapter"
  - AAI id mapping in SOL002 Adapter

    SOL002 (Ve-Vnfm) Adapter project
    - mapping between vnfInstanceId and AAI Id to the DMaaP message

    Issue-ID: SO-2574
    Signed-off-by: Piotr Borelowski <p.borelowski@partner.samsung.com>
    Change-Id: Ic20ff45a49b26c141aa834d55589f482f961e70b

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 01d814c..ac42fe6 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 01d814c45616bcde613db3ca760df5c9348337a5
+Subproject commit ac42fe6ee5e461c3053d40f23cc62882b6a59fe5