ASoC: Add DA7213 audio codec as selectable option

This commit adds the Dialog DA7213 audio codec as a selectable option
in the kernel config. Currently the driver can only be selected for
Intel Baytrail/Cherrytrail devices or if SND_SOC_ALL_CODECS is enabled.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20191108174843.11227-3-sebastian.reichel@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -679,7 +679,8 @@ config SND_SOC_DA7210
         tristate
 
 config SND_SOC_DA7213
-        tristate
+	tristate "Dialog DA7213 CODEC"
+	depends on I2C
 
 config SND_SOC_DA7218
 	tristate