Update git submodules

* Update docs/submodules/ccsdk/distribution.git from branch 'master'
  to fc4bb348c8a8b4a5d5f77065b8ebbca16d6ce5b8
  - Update distribution scripts to python3
    
    Also use python3 packages in Dockerfiles.
    Make python2 also available for OpenDaylight until they migrate
    
    Signed-off-by: Miroslav Los <miroslav.los@pantheon.tech>
    Issue-ID: CCSDK-1923
    Change-Id: I3d4453ccbfe191c545ba574695387dd33c129e25
    
1 file changed