net: prestera: acl: make read-only array client_map static const

Don't populate the read-only array client_map  on the stack but
instead make it static const. Also makes the object code a little
smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20220307221349.164585-1-colin.i.king@gmail.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/marvell/prestera/prestera_acl.c

@@ -91,7 +91,7 @@ static const struct rhashtable_params __prestera_acl_rule_entry_ht_params = {
 
 int prestera_acl_chain_to_client(u32 chain_index, u32 *client)
 {
-	u32 client_map[] = {
+	static const u32 client_map[] = {
 		PRESTERA_HW_COUNTER_CLIENT_LOOKUP_0,
 		PRESTERA_HW_COUNTER_CLIENT_LOOKUP_1,
 		PRESTERA_HW_COUNTER_CLIENT_LOOKUP_2