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.h b/drivers/net/spider_net.h
index 1d054aa..04007d7 100644
--- a/drivers/net/spider_net.h
+++ b/drivers/net/spider_net.h
@@ -349,7 +349,7 @@
 #define SPIDER_NET_GPRDAT_MASK			0x0000ffff
 
 #define SPIDER_NET_DMAC_NOINTR_COMPLETE		0x00800000
-#define SPIDER_NET_DMAC_NOCS			0x00040000
+#define SPIDER_NET_DMAC_TXFRMTL		0x00040000
 #define SPIDER_NET_DMAC_TCP			0x00020000
 #define SPIDER_NET_DMAC_UDP			0x00030000
 #define SPIDER_NET_TXDCEST			0x08000000