build: take more control over perfevent rpm package builds
build: take more control over perfevent rpm package builds

Need to guard against unintentional configure activation in
the fedora.spec files for perfevent and a couple of other
PMDA sub-packages, results in build failure when it happens.

Resolves Red Hat BZ #1459510.

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp