Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 2abd30fb57643fa07eb1a183c3525d559cb68237
  - Sonar fixes and improvements
    
    General fixes and improvements according to the Sonar analysis.
    -Fixed imports.
    -Removed unnecessary variables.
    -Added String constants.
    
    Issue-ID: SO-1992
    Signed-off-by: Robert Bogacki <r.bogacki@samsung.com>
    Change-Id: I8b77def931e703c8a73929ec09324823a91721e3
    
1 file changed