Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 7511bc24717091b316b70b95a827600567bc285e
  - Refactor SOL003 Adapter to organize its modules
    
    Change-Id: I6025f6b1975ead19284edcea76607b62a3bcbc17
    Issue-ID: SO-2771
    Signed-off-by: waqas.ikram <waqas.ikram@est.tech>
    
diff --git a/docs/submodules/so.git b/docs/submodules/so.git
index 52ecd9c..7511bc2 160000
--- a/docs/submodules/so.git
+++ b/docs/submodules/so.git
@@ -1 +1 @@
-Subproject commit 52ecd9c8163060b6715e1f13055d680c90229e65
+Subproject commit 7511bc24717091b316b70b95a827600567bc285e