Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 22c74e97c4d75249c7b15b4ba8862c6a4efdb84a
  - Merge "Remove MsoLogger form BPMN infrastructure scripts"
  - Remove MsoLogger form BPMN infrastructure scripts

    Replaced MsoLogger with plain slf4j.
    Refactored loging output.
    Fixed imports.
    Replaced utils.log() with respective logger calls.

    Change-Id: I1154682f58206d6e97ae605f4eb9ba8ef8a10e1f
    Issue-ID: LOG-631
    Signed-off-by: Witold Ficio Kopel <w.kopel@samsung.com>
    Signed-off-by: k.kazak <k.kazak@samsung.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index dbbcde5..22c74e9 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit dbbcde5f8a212c2cc28c8daad43422a81feee368
+Subproject commit 22c74e97c4d75249c7b15b4ba8862c6a4efdb84a