ASoC: rockchip: Add dapm route for DMic

Add dapm route for DMIC codec.
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/rockchip/rk3399_gru_sound.c

@@ -54,6 +54,7 @@ static const struct snd_soc_dapm_route rockchip_dapm_routes[] = {
 	{"MIC", NULL, "Headset Mic"},
 	{"DMIC1L", NULL, "Int Mic"},
 	{"DMIC1R", NULL, "Int Mic"},
+	{"DMic", NULL, "Int Mic"},
 
 	/* Output Lines */
 	{"Headphones", NULL, "HPL"},