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/siimage.c b/drivers/ide/pci/siimage.c
index 697f566..4ff89c7 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -1096,7 +1096,7 @@
 	.probe		= siimage_init_one,
 };
 
-static int siimage_ide_init(void)
+static int __init siimage_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }