ASoC: msm: Add support for voice over HDMI

Add support for slimbus tx channels between external modem
and APQ.
The tx channels transfer voice packets from modem to
HDMI output in APQ.

CRs-Fixed: 360641
Change-Id: I8953df61954758f1a19590ec79bffe614bc02bd8
Signed-off-by: Helen Zeng <xiaoyunz@codeaurora.org>
diff --git a/arch/arm/mach-msm/devices-8064.c b/arch/arm/mach-msm/devices-8064.c
index 075c124..00572dd 100644
--- a/arch/arm/mach-msm/devices-8064.c
+++ b/arch/arm/mach-msm/devices-8064.c
@@ -618,6 +618,11 @@
 	.id = 0x4006,
 };
 
+struct platform_device apq_cpudai_slimbus_3_tx = {
+	.name = "msm-dai-q6",
+	.id = 0x4007,
+};
+
 static struct resource resources_ssbi_pmic1[] = {
 	{
 		.start  = MSM_PMIC1_SSBI_CMD_PHYS,