This blocks Checkstyle for Controller from working in-IDE in
https://github.com/vorburger/opendaylight-eclipse-setup. If a
individual developer still wants to disable it, that is still possible
locally, via menu Window > Preferences > Maven > Lifecycle Mapping.
Change-Id: I40d98cba30aa999fafebcbd82c6ea53696e971f0
Signed-off-by: Michael Vorburger <vorburger@redhat.com>