net: atm: constify in_cache_ops and eg_cache_ops structures

The in_cache_ops and eg_cache_ops structures are never modified, so declare
them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/atm/mpc.h b/net/atm/mpc.h
index 0919a88b..cfc7b74 100644
--- a/net/atm/mpc.h
+++ b/net/atm/mpc.h
@@ -21,11 +21,11 @@
 	uint8_t our_ctrl_addr[ATM_ESA_LEN];  /* MPC's control ATM address   */
 
 	rwlock_t ingress_lock;
-	struct in_cache_ops *in_ops; /* ingress cache operations            */
+	const struct in_cache_ops *in_ops; /* ingress cache operations      */
 	in_cache_entry *in_cache;    /* the ingress cache of this MPC       */
 
 	rwlock_t egress_lock;
-	struct eg_cache_ops *eg_ops; /* egress cache operations             */
+	const struct eg_cache_ops *eg_ops; /* egress cache operations       */
 	eg_cache_entry *eg_cache;    /* the egress  cache of this MPC       */
 
 	uint8_t *mps_macs;           /* array of MPS MAC addresses, >=1     */