Update git submodules

* Update docs/submodules/so/libs.git from branch 'master'
  to 6bb115f3212190d798691261530ec1d95e5d4a8e
  - Merge "Automation adds index.rst"
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    
    Change-Id: Ie5f394d52cdd9bf169c536af3dec7fd391588929
    Signed-off-by: lf-jobbuilder <releng+lf-jobbuilder@linuxfoundation.org>
    
1 file changed