hal: add changes to support RAS

Receiver Aided Stereo(RAS) is a feature to support stereo
playback over receiver and speaker. Add new RAS property
and device to support this feature.

Change-Id: I8cd62a352b2847d6068285ea84e2d8f85e931619
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index 4279060..731d81c 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2017, The Linux Foundation. All rights reserved.
  * Not a Contribution.
  *
  * Copyright (C) 2013 The Android Open Source Project
@@ -130,6 +130,8 @@
     SND_DEVICE_OUT_SPEAKER_WSA,
     SND_DEVICE_OUT_VOICE_SPEAKER_WSA,
     SND_DEVICE_OUT_VOICE_SPEAKER_2_WSA,
+    SND_DEVICE_OUT_SPEAKER_PROTECTED_RAS,
+    SND_DEVICE_OUT_SPEAKER_PROTECTED_VBAT_RAS,
     SND_DEVICE_OUT_END,
 
     /*