Update git submodules

* Update docs/submodules/aaf/certservice.git from branch 'master'
  to 0855846bc0ab2dcdadc5ef7ed9588f70124ce21e
  - Add annotation for OpenAPI 3.0 documentation generation
    
    Issue-ID: AAF-997
    Signed-off-by: Bartosz Gardziejewski <bartosz.gardziejewski@nokia.com>
    Change-Id: I6dcbe2076d7e0095c210b1cae95309fe31ebf243
    
1 file changed