[PATCH] fix default IDE interfaces initialization for PPC32

In ide_init_default_irq() patch I overlooked that ppc_ide_md.init_hwif_ports()
called from generic ide_init_hwif_ports() can set hwif->irq and it will
be overwritten by ide_init_default_irq() if CONFIG_PCI is defined.  Fix
it.

I will clean it up properly later after killing ide_init_hwif_ports() on
ARM{26}.  Doing it now is just wasted effort.

drivers/ide/ide.c

@@ -307,8 +307,10 @@ static void __init init_ide_data (void)
 		hwif = &ide_hwifs[index];
 		init_hwif_data(hwif, index);
 		init_hwif_default(hwif, index);
+#if !defined(CONFIG_PPC32) || !defined(CONFIG_PCI)
 		hwif->irq = hwif->hw.irq =
 			ide_init_default_irq(hwif->io_ports[IDE_DATA_OFFSET]);
+#endif
 	}
 
 /* OBSOLETE: still needed on arm26 and arm */