[PATCH] ASoC: stac9766: fix build errors with REGMAP_AC97

[Randy Dunlap]

Select REGMAP_AC97 to fix these build errors:

ERROR: modpost: "regmap_ac97_default_volatile" [sound/soc/codecs/snd-soc-stac9766.ko] undefined!
ERROR: modpost: "__regmap_init_ac97" [sound/soc/codecs/snd-soc-stac9766.ko] undefined!

Fixes: 6bbf787bb70c ("ASoC: stac9766: Convert to regmap")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
Cc: Mark Brown <broonie@xxxxxxxxxx>
Cc: Liam Girdwood <lgirdwood@xxxxxxxxx>
Cc: alsa-devel@xxxxxxxxxxxxxxxx
---
 sound/soc/codecs/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff -- a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -1693,6 +1693,7 @@ config SND_SOC_STA529
 config SND_SOC_STAC9766
 	tristate
 	depends on SND_SOC_AC97_BUS
+	select REGMAP_AC97
 
 config SND_SOC_STI_SAS
 	tristate "codec Audio support for STI SAS codec"