[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>

net/packet/af_packet.c

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index f8b8301..7c27bd3 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1928,7 +1928,7 @@
 	return 0;
 }
 
-static struct seq_operations packet_seq_ops = {
+static const struct seq_operations packet_seq_ops = {
 	.start	= packet_seq_start,
 	.next	= packet_seq_next,
 	.stop	= packet_seq_stop,