net: sched: fix compile warning in cls_u32

$ grep CONFIG_CLS_U32_MARK .config
# CONFIG_CLS_U32_MARK is not set

net/sched/cls_u32.c: In function 'u32_change':
net/sched/cls_u32.c:852:1: warning: label 'errout' defined but not used
[-Wunused-label]
Signed-off-by: NEric Dumazet <edumazet@google.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sched/cls_u32.c

@@ -847,9 +847,9 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 
 #ifdef CONFIG_CLS_U32_MARK
 	free_percpu(n->pcpu_success);
+errout:
 #endif
 
-errout:
 #ifdef CONFIG_CLS_U32_PERF
 	free_percpu(n->pf);
 #endif