Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 5e8a0267b4c674c2935973f2e01d7a6695017e2d
  - Merge "Small improvements to Notification and Subscription filters"
  - Small improvements to Notification and Subscription filters

    Ve-Vnfm (SOL002) Adapter project
    - change after code review

    Issue-ID: SO-2574
    Signed-off-by: Piotr Borelowski <p.borelowski@partner.samsung.com>
    Change-Id: Id5330d995194ba9d995266c6b9dfe11cdb39f4dd

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index c00b2c1..5e8a026 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit c00b2c19b3ddaa17a5a5a50487296a3e9b03bca0
+Subproject commit 5e8a0267b4c674c2935973f2e01d7a6695017e2d