apbuart: Fix build warning.

drivers/serial/apbuart.c: In function ‘apbuart_probe’:
drivers/serial/apbuart.c:574: warning: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘resource_size_t’

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/serial/apbuart.c b/drivers/serial/apbuart.c
index 8a34304..c7883a3 100644
--- a/drivers/serial/apbuart.c
+++ b/drivers/serial/apbuart.c
@@ -570,8 +570,8 @@
 
 	apbuart_flush_fifo((struct uart_port *) port);
 
-	printk(KERN_INFO "grlib-apbuart at 0x%x, irq %d\n",
-	       port->mapbase, port->irq);
+	printk(KERN_INFO "grlib-apbuart at 0x%llx, irq %d\n",
+	       (unsigned long long) port->mapbase, port->irq);
 	return 0;
 
 }