sch_choke: Use kvcalloc

Convert the use of kvmalloc_array with __GFP_ZERO to
the equivalent kvcalloc.

Signed-off-by: Joe Perches <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/sched/sch_choke.c

···
 	if (mask != q->tab_mask) {
 		struct sk_buff **ntab;
 
-		ntab = kvmalloc_array((mask + 1), sizeof(struct sk_buff *), GFP_KERNEL | __GFP_ZERO);
+		ntab = kvcalloc(mask + 1, sizeof(struct sk_buff *), GFP_KERNEL);
 		if (!ntab)
 			return -ENOMEM;