ASoC: Build adau1701 when SND_SOC_ALL_CODECS is selected

The adau1701 driver was removed from SND_SOC_ALL_CODECS in commit commit ee8c7e97
("ASoC: Remove adau1701 from SND_SOC_ALL_CODECS due to Sigma dependency") due
to the dependency on the SigmaDSP firmware loader which was only available on a
limited set of platforms. This was fixed quite some time ago in commit 40216ce7
("ASoC: Move SigmaDSP firmware loader to ASoC") though, so we can add the driver
back again to SND_SOC_ALL_CODECS.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: NMark Brown <broonie@linaro.org>

sound/soc/codecs/Kconfig

@@ -20,6 +20,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_AD73311
 	select SND_SOC_ADAU1373 if I2C
 	select SND_SOC_ADAV80X if SND_SOC_I2C_AND_SPI
+	select SND_SOC_ADAU1701 if I2C
 	select SND_SOC_ADS117X
 	select SND_SOC_AK4104 if SPI_MASTER
 	select SND_SOC_AK4535 if I2C