ASoC: Make WM8770 SPI usage unconditional

The device only supports SPI.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8770.c

@@ -690,7 +690,6 @@ static const struct of_device_id wm8770_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, wm8770_of_match);
 
-#if defined(CONFIG_SPI_MASTER)
 static int __devinit wm8770_spi_probe(struct spi_device *spi)
 {
 	struct wm8770_priv *wm8770;
@@ -726,28 +725,23 @@ static struct spi_driver wm8770_spi_driver = {
 	.probe = wm8770_spi_probe,
 	.remove = __devexit_p(wm8770_spi_remove)
 };
-#endif
 
 static int __init wm8770_modinit(void)
 {
 	int ret = 0;
 
-#if defined(CONFIG_SPI_MASTER)
 	ret = spi_register_driver(&wm8770_spi_driver);
 	if (ret) {
 		printk(KERN_ERR "Failed to register wm8770 SPI driver: %d\n",
 		       ret);
 	}
-#endif
 	return ret;
 }
 module_init(wm8770_modinit);
 
 static void __exit wm8770_exit(void)
 {
-#if defined(CONFIG_SPI_MASTER)
 	spi_unregister_driver(&wm8770_spi_driver);
-#endif
 }
 module_exit(wm8770_exit);