Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 9af47ee96a3e76969898c5bf327721cb632a4996
  - Merge "Cleaned up MsoLogger from 'mso-api-handlers'"
  - Cleaned up MsoLogger from 'mso-api-handlers'

    Replaced MsoLogger with plain slf4j.
    Refactored login output.
    Fixed imports.

    Change-Id: Ie94df7dbe4ce05ab7de77318401473390f822d1e
    Issue-ID: LOG-631
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 3a53044..9af47ee 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 3a53044a8803973f35487ea98c13f383a7a0c030
+Subproject commit 9af47ee96a3e76969898c5bf327721cb632a4996