Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 40a3997517147e638a7e87a8cad668db154414a7
  - Fix BBS integration issue
    
    Issue-ID: SO-2955
    Change-Id: I44419a403756c87dcd8dd0f98ee63721bb193906
    Signed-off-by: ramu.n <ramu.n@huawei.com>
    (cherry picked from commit fa20cbaba61bbb6dc073ddfadea264bb7b0c823d)
    
1 file changed