Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to a610ba5990ac65c962de8bbedc676b2ec29ed8f1
  - Merge changes I8e443077,I51a9106a,I54076323

    * changes:
      fix sonar issue
      fix sonar issue
      fix sonar issue

  - fix sonar issue

    fix sonar issues

    Issue-ID: SO-1811
    Signed-off-by: sarada prasad sahoo <sarada.prasad.sahoo@huawei.com>
    Change-Id: I8e443077864d758149bb5f62bc5dc5f718c29204

  - fix sonar issue

    fix sonar issues

    Issue-ID: SO-1811
    Signed-off-by: sarada prasad sahoo <sarada.prasad.sahoo@huawei.com>
    Change-Id: I51a9106ad99e7bb101c3d6c9a33603ac202d7cb6

  - fix sonar issue

    fix sonar issues

    Issue-ID: SO-1811
    Signed-off-by: sarada prasad sahoo <sarada.prasad.sahoo@huawei.com>
    Change-Id: I5407632386d75a239a4847e763159e60c3008ded