selftests/bpf: Use producer_cnt to allocate local counter array

For count-local benchmark, use producer_cnt instead of consumer_cnt when
allocating local counter array.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20230613080921.1623219-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/testing/selftests/bpf/benchs/bench_count.c

@@ -40,7 +40,7 @@ static void count_local_setup(void)
 {
 	struct count_local_ctx *ctx = &count_local_ctx;
 
-	ctx->hits = calloc(env.consumer_cnt, sizeof(*ctx->hits));
+	ctx->hits = calloc(env.producer_cnt, sizeof(*ctx->hits));
 	if (!ctx->hits)
 		exit(1);
 }