ASoC: SSM2602: add SPI support

The ssm2602 codec has a SPI interface as well as I2C, so add the simple
bit of glue to make it usable.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 78da05b..ee7374e 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -40,7 +40,7 @@
 	select SND_SOC_SGTL5000 if I2C
 	select SND_SOC_SN95031 if INTEL_SCU_IPC
 	select SND_SOC_SPDIF
-	select SND_SOC_SSM2602 if I2C
+	select SND_SOC_SSM2602 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
 	select SND_SOC_TLV320AIC23 if I2C
 	select SND_SOC_TLV320AIC26 if SPI_MASTER