ASoC: msm: Add support for AC3 and EC3 playback in tunnel mode

Dolby surround1-DS1 module supports both Dolby Audio processing - post
processing and Dolby digital plus decoder in DSP. Add support for
AC3 and EC3 playback in tunnel mode so that DS1 is integrated and
functional end to end.

Change-Id: Iacb46cdfded16c9a5a9227a6ff4e072c61df2be8
Signed-off-by: Subhash Chandra Bose Naripeddy <snariped@codeaurora.org>
diff --git a/include/sound/apr_audio-v2.h b/include/sound/apr_audio-v2.h
index 04e683f..dc6816b 100644
--- a/include/sound/apr_audio-v2.h
+++ b/include/sound/apr_audio-v2.h
@@ -2593,6 +2593,14 @@
 
 } __packed;
 
+/* @brief Dolby Digital Plus end point configuration structure
+ */
+struct asm_dec_ddp_endp_param_v2 {
+	struct apr_hdr hdr;
+	struct asm_stream_cmd_set_encdec_param  encdec;
+	int endp_param_value;
+} __packed;
+
 /* @brief Multichannel PCM encoder configuration structure used
  * in the #ASM_STREAM_CMD_OPEN_READ_V2 command.
  */