Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 47cb6260f222c2f0cb0c95a53646e3196a930a8b
  - Merge "General sonar improvements"
  - General sonar improvements

    +) Format logger witth log formatter
    ++) remove unused imports

    Issue-ID: SO-2381
    Change-Id: If8b8f2377ae3b7c8d8a270792eaf99a04cfa7ef0
    Signed-off-by: Arindam Mondal <arind.mondal@samsung.com>
    Signed-off-by: arind.mondal <arind.mondal@samsung.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 17caf5e..47cb626 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 17caf5e4b1792d592ba9ce3ca8f3115c76b78919
+Subproject commit 47cb6260f222c2f0cb0c95a53646e3196a930a8b