Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 6db24e72ecbf4f5c63085085c10dc656568b563b
  - Merge "Fix dependency failure for aai-schema"
  - Fix dependency failure for aai-schema
    
    Updated solution of dependency failure after changes in AAI
    
    Issue-ID: SO-2636
    Signed-off-by: Mateusz Harazin <mateusz.harazin@nokia.com>
    Change-Id: I253c73bf749fe200eda83eaa1761deeb38227c5e
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 092c43b..6db24e7 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 092c43b8a222fe987084c4a103b3e1e888ff7550
+Subproject commit 6db24e72ecbf4f5c63085085c10dc656568b563b