Add a simple init script for cpglockd. The rgmanager init script still
    needs to be updated to call this when RRP mode is enabled and CPG
    locks are not explicitly disabled.
    
    Signed-off-by: Ryan McCabe <rmccabe@redhat.com>
    Reviewed-by: Lon Hohberger <lhh@redhat.com>
    Reviewed-by: Fabio M. Di Nitto <fdinitto@redhat.com>