x86, NUMA: make srat.c 32bit safe

Make srat.c 32bit safe by removing the assumption that unsigned long
is 64bit.

Signed-off-by: Tejun Heo <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Yinghai Lu <[e-mail]>
Cc: David Rientjes <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: "H. Peter Anvin" <[e-mail]>

arch/x86/mm/srat.c

···
 void __init
 acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
 {
-	unsigned long start, end;
+	u64 start, end;
 	int node, pxm;
 
 	if (srat_disabled())
···
 		return;
 	}
 
-	printk(KERN_INFO "SRAT: Node %u PXM %u %lx-%lx\n", node, pxm,
+	printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
 	       start, end);
 }