PCI: Replace deprecated __initcall with device_initcall.

Signed-off-by: NRobert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

drivers/pci/proc.c

@@ -482,5 +482,5 @@ static int __init pci_proc_init(void)
 	return 0;
 }
 
-__initcall(pci_proc_init);
+device_initcall(pci_proc_init);