Asoc: msm: 8064: Add support for in-call features

- Add support for slimbus rx and tx channels
  between external modem and APQ.
- Use the slimbus rx channel to route audio packets
  from APQ to external modem for music delivery to
  far-end during a voice call.
- Use the slimbus tx channel to route the voice packets
  from external modem to APQ to record to a file.
- Add mixer control to set mono or stereo recording.

Change-Id: Ice6315de19bf0e2a8d7bd55973976b3c320f1984
Signed-off-by: Helen Zeng <xiaoyunz@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8064.c b/arch/arm/mach-msm/board-8064.c
index 9e3b898..59f42e5 100644
--- a/arch/arm/mach-msm/board-8064.c
+++ b/arch/arm/mach-msm/board-8064.c
@@ -1962,6 +1962,8 @@
 	&msm_tpiu_device,
 	&msm_funnel_device,
 	&apq8064_etm_device,
+	&apq_cpudai_slim_4_rx,
+	&apq_cpudai_slim_4_tx,
 };
 
 static struct platform_device *sim_devices[] __initdata = {