Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 9131b47477881cf35f40d0c1c359d18dadf72130
  - Merge "Fix Sonar issue with throw generic exception on apihandlerinfra"
  - Fix Sonar issue with throw generic exception on apihandlerinfra
    
    Issue-ID: SO-2645
    Signed-off-by: Tomasz Wrobel <tomasz.wrobel@nokia.com>
    Change-Id: I111ca7c7bef271386bd075e2b948f29d7c2b4516
    
1 file changed