Update git submodules

* Update docs/submodules/aaf/certservice.git from branch 'master'
  to d8952f51d6921cd82dfe6a46d708dacb820711b8
  - Merge "Improve readability of logs for positive path"
  - Improve readability of logs for positive path
    
    Issue-ID: AAF-1107
    Signed-off-by: Mateusz Harazin <mateusz.harazin@nokia.com>
    Change-Id: If6501ad59955cac6611bc233d3fcd4ef95829b66
    
1 file changed