ASoC: adau1372: add missing dependencies

SND_SOC_ADAU1372_I2C and SND_SOC_ADAU1372_SPI prpoerly select the REGMAP
config they need but forget to depend on the underlying bus.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201130215626.2400999-1-alexandre.belloni@bootlin.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -373,11 +373,13 @@ config SND_SOC_ADAU1372
 
 config SND_SOC_ADAU1372_I2C
 	tristate "Analog Devices ADAU1372 CODEC (I2C)"
+	depends on I2C
 	select SND_SOC_ADAU1372
 	select REGMAP_I2C
 
 config SND_SOC_ADAU1372_SPI
 	tristate "Analog Devices ADAU1372 CODEC (SPI)"
+	depends on SPI
 	select SND_SOC_ADAU1372
 	select REGMAP_SPI