ASoC: msm: Add routing control to route voice to HDMI

Add mixer control to route voice to HDMI.

Change-Id: Id94bdefc302edbcbc82a3430abee0f6d361075a1
Signed-off-by: Helen Zeng <xiaoyunz@codeaurora.org>
diff --git a/sound/soc/msm/msm-pcm-routing.c b/sound/soc/msm/msm-pcm-routing.c
index 4219ab6..e137a66 100644
--- a/sound/soc/msm/msm-pcm-routing.c
+++ b/sound/soc/msm/msm-pcm-routing.c
@@ -1408,6 +1408,9 @@
 	SOC_SINGLE_EXT("VoLTE", MSM_BACKEND_DAI_HDMI_RX,
 	MSM_FRONTEND_DAI_VOLTE, 1, 0, msm_routing_get_voice_mixer,
 	msm_routing_put_voice_mixer),
+	SOC_SINGLE_EXT("Voice Stub", MSM_BACKEND_DAI_HDMI_RX,
+	MSM_FRONTEND_DAI_VOICE_STUB, 1, 0, msm_routing_get_voice_stub_mixer,
+	msm_routing_put_voice_stub_mixer),
 };
 
 static const struct snd_kcontrol_new stub_rx_mixer_controls[] = {