[SCSI] iscsi class, libiscsi and qla4xxx: convert to new transport host byte values

This patch converts the iscsi drivers to the new host byte values.

v2
Drop some conversions. Want to avoid conflicts with other patches.
v1
initial patch.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index a91a57c..799120f 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -139,7 +139,7 @@
 			      ha->host_no, cmd->device->channel,
 			      cmd->device->id, cmd->device->lun));
 
-		cmd->result = DID_BUS_BUSY << 16;
+		cmd->result = DID_TRANSPORT_DISRUPTED << 16;
 
 		/*
 		 * Mark device missing so that we won't continue to send
@@ -243,7 +243,7 @@
 		if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
 			qla4xxx_mark_device_missing(ha, ddb_entry);
 
-		cmd->result = DID_BUS_BUSY << 16;
+		cmd->result = DID_TRANSPORT_DISRUPTED << 16;
 		break;
 
 	case SCS_QUEUE_FULL: