ASoC: pcm5102a: Make codec selectable

The TI PCM5102A codec driver can be used with the generic sound card
drivers, so it should be selectable. For example, with the addition
of #sound-dai-cells = <0> property in DT, it can be used with simple/graph
card drivers.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20201012141911.3150996-1-codrin.ciubotariu@microchip.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -1003,7 +1003,7 @@ config SND_SOC_PCM3168A_SPI
 	select REGMAP_SPI
 
 config SND_SOC_PCM5102A
-	tristate
+	tristate "Texas Instruments PCM5102A CODEC"
 
 config SND_SOC_PCM512x
 	tristate