spidernet: fix misnamed flag

The transmit frame tail bit is stranglely misnamed as
"no checksum". Fix the name to what it should be:
"transmit frame tail". No functional change,
just a name change.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 8fa9ff7..9d3ae35 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -716,7 +716,7 @@
 	hwdescr->data_status = 0;
 
 	hwdescr->dmac_cmd_status =
-			SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_NOCS;
+			SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_TXFRMTL;
 	spin_unlock_irqrestore(&chain->lock, flags);
 
 	if (skb->ip_summed == CHECKSUM_PARTIAL)