[NET]: Move Qdisc_class_ops and Qdisc_ops in appropriate sections.

Qdisc_class_ops are const, and Qdisc_ops are mostly read.

Using "const" and "__read_mostly" qualifiers helps to reduce false
sharing.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 4c3b351..9418ac2 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -86,7 +86,7 @@
 struct Qdisc_ops
 {
 	struct Qdisc_ops	*next;
-	struct Qdisc_class_ops	*cl_ops;
+	const struct Qdisc_class_ops	*cl_ops;
 	char			id[IFNAMSIZ];
 	int			priv_size;