amd74xx: arm hack

drivers/ide/pci/amd74xx.c: In function `init_hwif_amd74xx':
drivers/ide/pci/amd74xx.c:387: error: implicit declaration of function `pci_get_legacy_ide_irq'

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <bzolnier@gmail.com>

drivers/ide/Kconfig

@@ -483,6 +483,7 @@ config WDC_ALI15X3
 
 config BLK_DEV_AMD74XX
 	tristate "AMD and nVidia IDE support"
+	depends on !ARM
 	select BLK_DEV_IDEDMA_PCI
 	help
 	  This driver adds explicit support for AMD-7xx and AMD-8111 chips