PCI: make CPU list affinity visible

Stephen Hemminger wrote:
> Looks like Mike created cpulistaffinty in sysfs but never completed
> the job.

This patch hooks things up correctly, taking care to remove the new file
when the bus is destroyed.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d807cd7..4723b12 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -109,6 +109,7 @@
 extern int pcie_mch_quirk;
 extern struct device_attribute pci_dev_attrs[];
 extern struct device_attribute dev_attr_cpuaffinity;
+extern struct device_attribute dev_attr_cpulistaffinity;
 
 /**
  * pci_match_one_device - Tell if a PCI device structure has a matching