Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 8322816ee2520e493ec4c3e376ed071e217d5485
  - Merge "fix wrong handling of checking null values"
  - fix wrong handling of checking null values

    Checking null values is handled by catching null pointer exception, this is not acceptable.

    Change-Id: I0c43bc8853b67579a50bc9e69c599b93b978f741
    Issue-ID: SO-2187
    Signed-off-by: Lukasz Muszkieta <lukasz.muszkieta@nokia.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index b38bc5e..8322816 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit b38bc5e99b9bc23f4ae5a6fcd641c26b1e2327b3
+Subproject commit 8322816ee2520e493ec4c3e376ed071e217d5485