Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to cc778524df33ee66a3f17416761ea4cd7b2ef952
  - Refactoring tests in BBInputSetupUtilsTest
    
    Issue-ID: SO-2613
    Signed-off-by: Mateusz Harazin <mateusz.harazin@nokia.com>
    Change-Id: I277277b0b5ca1c76afb9a466b20479c97d033401
    
1 file changed