Use the right printk format to silence the following warning.
  CC      arch/powerpc/mm/init_64.o
arch/powerpc/mm/init_64.c: In function 'vmemmap_populate':
arch/powerpc/mm/init_64.c:243: warning: format '%p' expects type 'void *', but argument 4 has type 'long unsigned int'
Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
                        return -ENOMEM;
 
                printk(KERN_WARNING "vmemmap %08lx allocated at %p, "
-                                       "physical %p.\n", start, p, __pa(p));
+                                   "physical %08lx.\n", start, p, __pa(p));
 
                mapped = htab_bolt_mapping(start, start + page_size,
                                        __pa(p), mode_rw, mmu_linear_psize,