libata: fix assigned IRQ reporting

host->irq and host->irq2 should be set before ata_host_register() for
IRQ reporting to work.  Move up host->irq assignment in
ata_host_activate() and add it to ata_pci_init_one() native path and
pata_cs5520.

The port info printing in ata_host_register() doesn't fit all the
different controllers.  It should probably be moved out to LLDs with
some helpers in the future.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 1aabe15..00cf013 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -284,6 +284,11 @@
 				      ata_interrupt, 0, DRV_NAME, host);
 		if (rc)
 			return rc;
+
+		if (i == 0)
+			host->irq = irq[0];
+		else
+			host->irq2 = irq[1];
 	}
 
 	return ata_host_register(host, &cs5520_sht);