IPv6: move the anycast_src_echo_reply sysctl to netns_sysctl_ipv6

This change move anycast_src_echo_reply sysctl with other ipv6 sysctls.

Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Francois-Xavier Le Bail <fx.lebail@yahoo.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 8003b49..902405d 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -559,7 +559,7 @@
 	saddr = &ipv6_hdr(skb)->daddr;
 
 	if (!ipv6_unicast_destination(skb) &&
-	    !(net->ipv6.anycast_src_echo_reply &&
+	    !(net->ipv6.sysctl.anycast_src_echo_reply &&
 	      ipv6_anycast_destination(skb)))
 		saddr = NULL;