ahci.c: fix CONFIG_PM=n compilation

Commit df69c9c5438b4e396a64d42608b2a6c48a3e7475 moved only prototype of
out of CONFIG_PM. Move function out as well. Box seems to boot fine.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/ahci.c

@@ -1519,6 +1519,14 @@ static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
 	}
 }
 
+static int ahci_port_resume(struct ata_port *ap)
+{
+	ahci_power_up(ap);
+	ahci_start_port(ap);
+
+	return 0;
+}
+
 #ifdef CONFIG_PM
 static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
 {
@@ -1536,14 +1544,6 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
 	return rc;
 }
 
-static int ahci_port_resume(struct ata_port *ap)
-{
-	ahci_power_up(ap);
-	ahci_start_port(ap);
-
-	return 0;
-}
-
 static int ahci_pci_device_suspend(struct pci_dev *pdev, pm_message_t mesg)
 {
 	struct ata_host *host = dev_get_drvdata(&pdev->dev);