Update cms-eventdisplay-files.xml

Addressing issues: https://github.com/cernopendata/opendata.cern.ch/issues/311  https://github.com/cernopendata/opendata.cern.ch/issues/154 https://github.com/cernopendata/opendata.cern.ch/issues/333 and https://github.com/cernopendata/opendata.cern.ch/issues/223
I changed it already in the primary data set files and I'm currently working my way through all the MARCXML files fixing all the open issues.