ide: turn set_irq() method into write_devctl() method

Turn set_irq() method with its software reset hack into write_devctl() method
(for just writing a value into the device control register) at last...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 8fc6ae9..e6e9674 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -295,7 +295,7 @@
 	.exec_command	= ide_exec_command,
 	.read_status	= ide_read_status,
 	.read_altstatus	= ide_read_altstatus,
-	.set_irq	= ide_set_irq,
+	.write_devctl	= ide_write_devctl,
 
 	.tf_load	= at91_ide_tf_load,
 	.tf_read	= at91_ide_tf_read,