[NET]: make seq_operations const

The seq_file operations stuff can be marked constant to
get it out of dirty cache.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/sock.c b/net/core/sock.c
index f9e6991..73a8018 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1925,7 +1925,7 @@
 	return 0;
 }
 
-static struct seq_operations proto_seq_ops = {
+static const struct seq_operations proto_seq_ops = {
 	.start  = proto_seq_start,
 	.next   = proto_seq_next,
 	.stop   = proto_seq_stop,