ASoC: mediatek: Add mt2701-cs42448 driver and config option.

Add machine driver and config option for MT2701.

Signed-off-by: Garlic Tseng <garlic.tseng@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/mediatek/Makefile b/sound/soc/mediatek/Makefile
index 4fe8068..6bcab35 100644
--- a/sound/soc/mediatek/Makefile
+++ b/sound/soc/mediatek/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_SND_SOC_MEDIATEK) += common/
+obj-$(CONFIG_SND_SOC_MT2701) += mt2701/
 obj-$(CONFIG_SND_SOC_MT8173) += mt8173/