[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/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index 823fbf4..a481a34 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -330,7 +330,7 @@
 	return ret;
 }
 
-static struct seq_operations nfqueue_seq_ops = {
+static const struct seq_operations nfqueue_seq_ops = {
 	.start	= seq_start,
 	.next	= seq_next,
 	.stop	= seq_stop,