Fix misleading comment of pci_stats
Fix misleading comment of pci_stats

make sure the comment around pci_stats reports the correct type for this variable

Change-Id: I889c0b3cf84685f529ec0ef6062b4ec658ff8269
Closes-Bug: 1456493

mikalstill/nova,cyx1231st/nova,bigswitch/nova,openstack/nova,gooddata/openstack-nova,jianghuaw/nova,phenoxim/nova,alaski/nova,CEG-FYP-OpenStack/scheduler,vmturbo/nova,rajalokan/nova,bigswitch/nova,jianghuaw/nova,sebrandon1/nova,dims/nova,klmitch/nova,Juniper/nova,rahulunair/nova,gooddata/openstack-nova,hanlind/nova,rajalokan/nova,BeyondTheClouds/nova,vmturbo/nova,Juniper/nova,BeyondTheClouds/nova,rahulunair/nova,hanlind/nova,rahulunair/nova,phenoxim/nova,mikalstill/nova,NeCTAR-RC/nova,jianghuaw/nova,klmitch/nova,cernops/nova,CEG-FYP-OpenStack/scheduler,cloudbase/nova,cloudbase/nova,BeyondTheClouds/nova,klmitch/nova,Juniper/nova,zhimin711/nova,dims/nova,cernops/nova,mahak/nova,rajalokan/nova,sebrandon1/nova,zhimin711/nova,Juniper/nova,alaski/nova,cernops/nova,vmturbo/nova,klmitch/nova,sebrandon1/nova,openstack/nova,gooddata/openstack-nova,gooddata/openstack-nova,mahak/nova,NeCTAR-RC/nova,rajalokan/nova,vmturbo/nova,jianghuaw/nova,cyx1231st/nova,mikalstill/nova,hanlind/nova,cloudbase/nova,mahak/nova,openstack/nova