isci: Save the suspension hint for upcoming suspensions.

In the case of a suspend call while in SCI_RNC_POSTING or INVALIDATING
states, the LLHANG detect needed to be saved so the upcoming suspension
would enable it correctly.  The unused suspend callback parameters were
removed.

Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c
index 809d368..432585b 100644
--- a/drivers/scsi/isci/request.c
+++ b/drivers/scsi/isci/request.c
@@ -2382,8 +2382,7 @@
 			&ireq->target_device->rnc,
 			SCI_HW_SUSPEND,
 			(is_tx_rx) ? SCU_EVENT_TL_RNC_SUSPEND_TX_RX
-				   : SCU_EVENT_TL_RNC_SUSPEND_TX,
-			NULL, NULL);
+				   : SCU_EVENT_TL_RNC_SUSPEND_TX);
 	}
 }