PCI: Use "unsigned long" for __pci_enable_device_flags to match ioport.h

__pci_enable_device_flags() takes values like IORESOURCE_IO and
IORESOURCE_MEM, which are values for struct resource.flags, which is
"unsigned long", not "resource_size_t".

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5cb5820..d574fbd 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1157,7 +1157,7 @@
 }
 
 static int __pci_enable_device_flags(struct pci_dev *dev,
-				     resource_size_t flags)
+				     unsigned long flags)
 {
 	int err;
 	int i, bars = 0;