tcp: Fix IPv6 fallout from 'Port redirection support for TCP'

'tcp: Port redirection support for TCP' (a3116ac5c) added a new member
to inet_request_sock() which inet_csk_clone() makes use of but failed
to add proper initialization to the IPv6 syncookie code and missed a
couple of places where the new member should be used instead of
inet_sk(sk)->sport.

Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index ec394cf..676c80b 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -204,6 +204,7 @@
 
 	req->mss = mss;
 	ireq->rmt_port = th->source;
+	ireq->loc_port = th->dest;
 	ipv6_addr_copy(&ireq6->rmt_addr, &ipv6_hdr(skb)->saddr);
 	ipv6_addr_copy(&ireq6->loc_addr, &ipv6_hdr(skb)->daddr);
 	if (ipv6_opt_accepted(sk, skb) ||