x86/PCI: make PCI bus locality messages more meaningful

Change PCI bus locality messages so they have a bit more context
and look like the rest of PCI, e.g.,

    - bus 01 -> node 0
    - bus 04 -> node 0
    + pci 0000:01: bus on NUMA node 0
    + pci 0000:04: bus on NUMA node 0
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

arch/x86/pci/acpi.c

@@ -210,11 +210,12 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
 	if (bus && node != -1) {
 #ifdef CONFIG_ACPI_NUMA
 		if (pxm >= 0)
-			printk(KERN_DEBUG "bus %02x -> pxm %d -> node %d\n",
-				busnum, pxm, node);
+			printk(KERN_DEBUG
+			       "pci %04x:%02x: bus on NUMA node %d (pxm %d)\n",
+				domain, busnum, node, pxm);
 #else
-		printk(KERN_DEBUG "bus %02x -> node %d\n",
-			busnum, node);
+		printk(KERN_DEBUG "pci %04x:%02x: bus on NUMA node %d\n",
+			domain, busnum, node);
 #endif
 	}