Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 597aba038c90ef34a8058794c73a2213d778673e
  - Merge "Vulnerability fixes in ServicePluginFactory"
  - Vulnerability fixes in ServicePluginFactory

    Sonar vulnerability fixes in ServicePluginFactory.
    -Moved hardcoded IP addresses to the property file.
    -Added junit test.

    Issue-ID: SO-2106
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    Change-Id: Id33e17f7845c106212bbf4d4a8ca78641cea1396

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 7ef379b..597aba0 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 7ef379bd727b99c04dd31ec957cb68f1f612905b
+Subproject commit 597aba038c90ef34a8058794c73a2213d778673e