[SCSI] make scsi_check_sense HARDWARE_ERROR return ADD_TO_MLQUEUE on retry

Change scsi_check_sense HARDWARE_ERROR check to return ADD_TO_MLQUEUE
if device->retry_hwerror is set to allow retries to occur without
restriction of blk_noretry_request check.

Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 880051c..39ce3ab 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -391,7 +391,7 @@
 
 	case HARDWARE_ERROR:
 		if (scmd->device->retry_hwerror)
-			return NEEDS_RETRY;
+			return ADD_TO_MLQUEUE;
 		else
 			return SUCCESS;