libata: add missing CONFIG_PM in LLDs

Add missing #ifdef CONFIG_PM conditionals around all PM related parts
in libata LLDs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index e8393e1..38f99b3 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -63,8 +63,10 @@
 	.slave_destroy		= ata_scsi_slave_destroy,
 	/* Use standard CHS mapping rules */
 	.bios_param		= ata_std_bios_param,
+#ifdef CONFIG_PM
 	.resume			= ata_scsi_device_resume,
 	.suspend		= ata_scsi_device_suspend,
+#endif
 };
 
 static const struct ata_port_operations netcell_ops = {
@@ -153,8 +155,10 @@
 	.id_table		= netcell_pci_tbl,
 	.probe			= netcell_init_one,
 	.remove			= ata_pci_remove_one,
+#ifdef CONFIG_PM
 	.suspend		= ata_pci_device_suspend,
 	.resume			= ata_pci_device_resume,
+#endif
 };
 
 static int __init netcell_init(void)