Update git submodules

* Update docs/submodules/modeling/etsicatalog.git from branch 'master'
  to 6215857a5a88907c2ba522b862992815e47f4960
  - additionalArtifacts is  not implemented in the response of the Query VNF API
    
    Change-Id: I62e3338b038eec1a318841521c3f2dcd1c05ee5e
    Issue-ID: MODELING-312
    Signed-off-by: hongyuzhao <zhao.hongyu@zte.com.cn>
    
1 file changed