Update git submodules

* Update docs/submodules/so/libs.git from branch 'master'
  to 7c50cecacba8f3f6697a83ed65623b64473edae2
  - Code Enhancement (Sonar Fixes)
    
    Sonar Issues Fixes
    
    Issue-ID: SO-1490
    
    Change-Id: If791dd6e4f6eba4acc04c3c970e968b4d02c2feb
    Signed-off-by: Isaac Manuel Raj <isaac.manuelraj@huawei.com>
    
diff --git a/docs/submodules/so/libs.git b/docs/submodules/so/libs.git
index 334ba60..7c50cec 160000
--- a/docs/submodules/so/libs.git
+++ b/docs/submodules/so/libs.git
@@ -1 +1 @@
-Subproject commit 334ba60fdb00880fdbaf3be7d82d6b97ed521ad7
+Subproject commit 7c50cecacba8f3f6697a83ed65623b64473edae2