llc: Make function pointer arrays const

It's better when function pointer arrays aren't modifiable.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/llc_c_st.h b/include/net/llc_c_st.h
index 0e79cfb..60e2ebb 100644
--- a/include/net/llc_c_st.h
+++ b/include/net/llc_c_st.h
@@ -36,7 +36,7 @@
 	llc_conn_ev_t	   ev;
 	u8		   next_state;
 	llc_conn_ev_qfyr_t *ev_qualifiers;
-	llc_conn_action_t  *ev_actions;
+	const llc_conn_action_t  *ev_actions;
 };
 
 struct llc_conn_state {