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/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 89109be..68df77e 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -907,7 +907,7 @@
 	.probe		= alim15x3_init_one,
 };
 
-static int ali15x3_ide_init(void)
+static int __init ali15x3_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }