[NET]: Make all initialized struct seq_operations const.

Make all initialized struct seq_operations in net/ const

Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/anycast.c b/net/ipv6/anycast.c
index 9b81264..b8c533f 100644
--- a/net/ipv6/anycast.c
+++ b/net/ipv6/anycast.c
@@ -539,7 +539,7 @@
 	return 0;
 }
 
-static struct seq_operations ac6_seq_ops = {
+static const struct seq_operations ac6_seq_ops = {
 	.start	=	ac6_seq_start,
 	.next	=	ac6_seq_next,
 	.stop	=	ac6_seq_stop,