Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 4ee5be728e9738f4e626ac4bb2a0cdff97cf14ac
  - Merge "Sonar issue - refactor nested if"
  - Sonar issue - refactor nested if

    Issue-ID: SO-1841
    Change-Id: I72d349501d6493367204396eb78e7b77a275df8f
    Signed-off-by: Tomasz Wrobel <tomasz.wrobel@nokia.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 4e6227a..4ee5be7 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 4e6227a98b2fe5b3c6ae78f5fc3d4d0553b119c1
+Subproject commit 4ee5be728e9738f4e626ac4bb2a0cdff97cf14ac