Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 022e9a55a51e1e2fcf489986cb2152059583397f
  - Merge "fix major sonar bug"
  - fix major sonar bug

    Removed useless 'instanceof' operator as it always resolves as true
    Replaced it with checking for null
    Removed unused imports
    Added information about modifications on the top
    Added junit tests for the method

    Change-Id: I7a902ad2852e0ed0d507a6309857a1bab74921de
    Issue-ID: SO-1491
    Signed-off-by: k.kazak <k.kazak@samsung.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index f143543..022e9a5 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit f1435439699e4e08d2bf912634208e18c894722f
+Subproject commit 022e9a55a51e1e2fcf489986cb2152059583397f