ide: add missing __init tags to IDE PCI host drivers

also change __devinit tag for sgiioc4.c:ioc4_ide_init() to __init

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/pci/serverworks.c

@@ -666,7 +666,7 @@ static struct pci_driver driver = {
 	.probe		= svwks_init_one,
 };
 
-static int svwks_ide_init(void)
+static int __init svwks_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }