Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 52d90269b975485e0c0221bc7d2b1252c341d65c
  - Merge "Remove unused logger,replace type specification"
  - Remove unused logger,replace type specification

    Remove unused logger,replace type specification sdnc beans and mapper classes

    Issue-ID: SO-1490

    Change-Id: I9a671f0ade5b86dbfd4cce1fbc6c07c0fdcf38a8
    Signed-off-by: Sindhuri.A <arcot.sindhuri@huawei.com>

diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 2627001..52d9026 160000 (submodule)
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 2627001834084af2e31a6c8c49503919a114b9c3
+Subproject commit 52d90269b975485e0c0221bc7d2b1252c341d65c