Fixing ZDC Validation configuration files

[jgomez2]

Simple fixes but very urgent.

[cmsbuild]

A new Pull Request was created by @jgomez2 (Jaime Arturo Gomez) for CMSSW_7_3_X.

Fixing ZDC Validation configuration files

It involves the following packages:

Validation/HcalDigis
Validation/HcalHits

@nclopezo, @danduggan, @rovere, @cmsbuild, @deguio, @ojeda can you please review it and eventually sign? Thanks.
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@nclopezo you are the release manager for this.
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[cmsbuild]

+1
Tested at: 83b41fb
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6346/819/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-6346/819/summary.html

[deguio]

+1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_7_3_X IBs unless changes (tests are also fine). This pull request will be automatically merged.