dm: sound: exynos: Add support for max98090

Add support for this new codec which is used by pit.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sound/Kconfig b/drivers/sound/Kconfig
index 93f6c36..18d7ca1 100644
--- a/drivers/sound/Kconfig
+++ b/drivers/sound/Kconfig
@@ -37,6 +37,14 @@
 	  option provides an implementation for sound_init() and
 	  sound_play().
 
+config SOUND_MAX98090
+	bool "Support Maxim max98090 audio codec"
+	depends on I2S_SAMSUNG
+	help
+	  Enable the max98090 audio codec. This is connected via I2S for
+	  audio data and I2C for codec control. At present it only works
+	  with the Samsung I2S driver.
+
 config SOUND_MAX98095
 	bool "Support Maxim max98095 audio codec"
 	depends on I2S_SAMSUNG