sa1100_ir: fix build breakage

Fix simple typo. Caused by commit
a1de966682551debbe690672e760487cc555c05f
("irda/sa1100_ir: convert to net_device_ops").

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/irda/sa1100_ir.c b/drivers/net/irda/sa1100_ir.c
index 4ed7636..2aeb2e6 100644
--- a/drivers/net/irda/sa1100_ir.c
+++ b/drivers/net/irda/sa1100_ir.c
@@ -925,7 +925,7 @@
 		goto err_mem_5;
 
 	dev->netdev_ops	= &sa1100_irda_netdev_ops;
-	dev->ir		= IRQ_Ser2ICP;
+	dev->irq	= IRQ_Ser2ICP;
 
 	irda_init_max_qos_capabilies(&si->qos);