hal: Correct pcm device ID for QCHAT session

  Correct QCHAT pcm device ID of 8x10 as per the
  machine driver.

Change-Id: I7f782d08584f95941e6041c0b5e1661a4398c20e
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index e7980d6..bb1f787 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -204,8 +204,8 @@
 #elif PLATFORM_MSM8610
 #define VOICE_CALL_PCM_DEVICE 2
 #define VOICE2_CALL_PCM_DEVICE 13
-#define VOLTE_CALL_PCM_DEVICE 14
-#define QCHAT_CALL_PCM_DEVICE 20
+#define VOLTE_CALL_PCM_DEVICE 15
+#define QCHAT_CALL_PCM_DEVICE 14
 #else
 #define VOICE_CALL_PCM_DEVICE 2
 #define VOICE2_CALL_PCM_DEVICE 22