be2net: swap only first 2 fields of mcc_wrb

Only the first two fields of mcc wrb - embedded, payload_len
need to be cpu_to_le32() swapped while issuing a cmd to the hw.
The fields tag0, tag1 are opaque and returned back to cpu as is...

Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index 102ade1..fee6eee 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -286,7 +286,7 @@
 				MCC_WRB_SGE_CNT_SHIFT;
 	wrb->payload_length = payload_len;
 	wrb->tag0 = opcode;
-	be_dws_cpu_to_le(wrb, 20);
+	be_dws_cpu_to_le(wrb, 8);
 }
 
 /* Don't touch the hdr after it's prepared */