ide: add CONFIG_IDE_ARCH_OBSOLETE_INIT

Add CONFIG_IDE_ARCH_OBSOLETE_INIT to drivers/ide/Kconfig and use it instead
of defining IDE_ARCH_OBSOLETE_INIT in <arch/ide.h>.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 252cb8c..875167e 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -388,7 +388,7 @@
 	if (hwif->io_ports[IDE_DATA_OFFSET] != base ||
 	    hwif->io_ports[IDE_CONTROL_OFFSET] != (ctl | 2)) {
 		memset(&hwif->hw, 0, sizeof(hwif->hw));
-#ifndef IDE_ARCH_OBSOLETE_INIT
+#ifndef CONFIG_IDE_ARCH_OBSOLETE_INIT
 		ide_std_init_ports(&hwif->hw, base, (ctl | 2));
 		hwif->hw.io_ports[IDE_IRQ_OFFSET] = 0;
 #else