[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/atm/br2684.c b/net/atm/br2684.c
index 3e26438..faa6aaf 100644
--- a/net/atm/br2684.c
+++ b/net/atm/br2684.c
@@ -758,7 +758,7 @@
 	return 0;
 }
 
-static struct seq_operations br2684_seq_ops = {
+static const struct seq_operations br2684_seq_ops = {
 	.start = br2684_seq_start,
 	.next  = br2684_seq_next,
 	.stop  = br2684_seq_stop,