ASoC: Minor cleanups to AD1938 driver

- Build in SND_SOC_ALL_CODECS.
- Remove null suspend/resume stuff.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/Kconfig

@@ -12,6 +12,7 @@ config SND_SOC_ALL_CODECS
 	tristate "Build all ASoC CODEC drivers"
 	select SND_SOC_L3
 	select SND_SOC_AC97_CODEC if SND_SOC_AC97_BUS
+	select SND_SOC_AD1836 if SPI_MASTER
 	select SND_SOC_AD1938 if SPI_MASTER
 	select SND_SOC_AD1980 if SND_SOC_AC97_BUS
 	select SND_SOC_AD73311 if I2C

sound/soc/codecs/ad1836.c

@@ -418,11 +418,6 @@ static int ad1836_remove(struct platform_device *pdev)
 struct snd_soc_codec_device soc_codec_dev_ad1836 = {
 	.probe = 	ad1836_probe,
 	.remove = 	ad1836_remove,
-	/* The power management of ad1836 is very simple. There are
-	 * only adc&dac 2 components to control. Dapm handles them.
-	 */
-	.suspend =      NULL,
-	.resume =       NULL,
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_ad1836);