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>
diff --git a/drivers/ide/pci/ns87415.c b/drivers/ide/pci/ns87415.c
index d95714b..8aaea4e 100644
--- a/drivers/ide/pci/ns87415.c
+++ b/drivers/ide/pci/ns87415.c
@@ -302,7 +302,7 @@
 	.probe		= ns87415_init_one,
 };
 
-static int ns87415_ide_init(void)
+static int __init ns87415_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }