gerrit plugin builds need to use version-properties.sh

Need to use version-properties.sh instead of maven-properties.sh. The script filename
was changed in change 688bdd459e85cd93c35435e03285355da536f26c

Change-Id: If79b90e99972e8d8bd218af2ff7cbc440336229c
Merge "gerrit plugin builds need to use version-properties.sh"