netfilter: ipv6: use NFPROTO values for NF_HOOK invocation

The semantic patch that was used:
// <smpl>
@@
@@
(NF_HOOK
|NF_HOOK_THRESH
|nf_hook
)(
-PF_INET6,
+NFPROTO_IPV6,
 ...)
// </smpl>

Signed-off-by: Jan Engelhardt <[email protected]>
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ed31c37..e9e1f77 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -636,8 +636,8 @@
 		goto error_fault;
 
 	IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
-	err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
-		      dst_output);
+	err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
+		      rt->u.dst.dev, dst_output);
 	if (err > 0)
 		err = net_xmit_errno(err);
 	if (err)