scsi: ufs: Power off hook for Cadence UFS driver

Attach power off hook to Cadence UFS driver.

Link: https://lore.kernel.org/r/1576491432-631-1-git-send-email-sheebab@cadence.comReviewed-by: NAvri Altman <avri.altman@wdc.com>
Reviewed-by: NAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: NSheeba B <sheebab@cadence.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/cdns-pltfrm.c

@@ -325,6 +325,7 @@ static const struct dev_pm_ops cdns_ufs_dev_pm_ops = {
 static struct platform_driver cdns_ufs_pltfrm_driver = {
 	.probe	= cdns_ufs_pltfrm_probe,
 	.remove	= cdns_ufs_pltfrm_remove,
+	.shutdown = ufshcd_pltfrm_shutdown,
 	.driver	= {
 		.name   = "cdns-ufshcd",
 		.pm     = &cdns_ufs_dev_pm_ops,