drivers/net/cxgb3: Use kzalloc for allocating only one thing

Use kzalloc rather than kcalloc(1,...)

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
@@

- kcalloc(1,
+ kzalloc(
          ...)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c
index 75064ee..9498361 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -1252,7 +1252,7 @@
 	struct mtutab mtutab;
 	unsigned int l2t_capacity;
 
-	t = kcalloc(1, sizeof(*t), GFP_KERNEL);
+	t = kzalloc(sizeof(*t), GFP_KERNEL);
 	if (!t)
 		return -ENOMEM;