build: fix build of HAL node backend

Commit 20253560 missed uses of PCI functions in the older HAL-related
code, probably because hal-devel is no longer available in latest Fedora.

* src/node_device/node_device_hal.c (gather_pci_cap): Reflect
function rename.

src/node_device/node_device_hal.c

 /*
  * node_device_hal.c: node device enumeration - HAL-based implementation
  *
- * Copyright (C) 2011 Red Hat, Inc.
+ * Copyright (C) 2011, 2013 Red Hat, Inc.
  * Copyright (C) 2008 Virtual Iron Software, Inc.
  * Copyright (C) 2008 David F. Lively
  *
@@ -148,10 +148,12 @@ static int gather_pci_cap(LibHalContext *ctx, const char *udi,
             (void)virStrToLong_ui(p+1, &p, 16, &d->pci_dev.function);
         }
 
-        if (!pciGetPhysicalFunction(sysfs_path, &d->pci_dev.physical_function))
+        if (!virPCIGetPhysicalFunction(sysfs_path,
+                                       &d->pci_dev.physical_function))
             d->pci_dev.flags |= VIR_NODE_DEV_CAP_FLAG_PCI_PHYSICAL_FUNCTION;
 
-        if (!pciGetVirtualFunctions(sysfs_path, &d->pci_dev.virtual_functions,
+        if (!virPCIGetVirtualFunctions(sysfs_path,
+                                       &d->pci_dev.virtual_functions,
             &d->pci_dev.num_virtual_functions) ||
             d->pci_dev.num_virtual_functions > 0)
             d->pci_dev.flags |= VIR_NODE_DEV_CAP_FLAG_PCI_VIRTUAL_FUNCTION;