ide: fix ide_port_scan() to do ACPI setup after initializing request queues

This makes ide_port_scan()'s behavior match ide_host_register()'s
one and fixes OOPS in elv_may_queue() during port re-scan.

Reported-and-tested-by: Bruno Prémont <[e-mail]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[e-mail]>

drivers/ide/ide-probe.c

···
 	hwif->present = 1;
 
 	ide_port_tune_devices(hwif);
-	ide_acpi_port_init_devices(hwif);
 	ide_port_setup_devices(hwif);
+	ide_acpi_port_init_devices(hwif);
 	hwif_register_devices(hwif);
 	ide_proc_port_register_devices(hwif);
 }