ASOC: msm: Add the secondary I2S RX CPU driver.

Add the secondary I2S RX CPU driver which configures QDSP6 AFE to
start the 2nd I2S RX port.

Change-Id: Ia60eb650124d74070aa510be7b601a9ca02a43aa
Signed-off-by: Kuirong Wang <kuirongw@codeaurora.org>
diff --git a/sound/soc/msm/msm-pcm-routing.h b/sound/soc/msm/msm-pcm-routing.h
index a8d2d91..25efb58 100644
--- a/sound/soc/msm/msm-pcm-routing.h
+++ b/sound/soc/msm/msm-pcm-routing.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
+/* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
@@ -29,6 +29,7 @@
 #define LPASS_BE_VOICE_PLAYBACK_TX "(Backend) VOICE_PLAYBACK_TX"
 #define LPASS_BE_INCALL_RECORD_RX "(Backend) INCALL_RECORD_TX"
 #define LPASS_BE_INCALL_RECORD_TX "(Backend) INCALL_RECORD_RX"
+#define LPASS_BE_SEC_I2S_RX "(Backend) SECONDARY_I2S_RX"
 
 #define LPASS_BE_MI2S_RX "(Backend) MI2S_RX"
 
@@ -71,6 +72,7 @@
 	MSM_BACKEND_DAI_INCALL_RECORD_RX,
 	MSM_BACKEND_DAI_INCALL_RECORD_TX,
 	MSM_BACKEND_DAI_MI2S_RX,
+	MSM_BACKEND_DAI_SEC_I2S_RX,
 	MSM_BACKEND_DAI_MAX,
 };