Perfevent configuration update

[Martins Innus <minnus@xxxxxxxxxxx>]

Hi,
    Here is an update from Joe to enable an additional counter on 
Nehalem and Westmere chips:
https://github.com/ubccr/pcp/tree/perfevents_conf_update

Thanks

Martins

commit cde84da2d778db26152f82dab905896646c29f28
Author: Joseph White <jpwhite4@xxxxxxxxxxx>
Date:   Wed Oct 7 12:12:57 2015 -0400

    Add reference clock cycles to config for NHM & WSM.

 src/pmdas/perfevent/perfevent.conf | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)