hal: add support to send/receive voice call TX/RX audio

Add support for routing voice calls to devices in other audio
HALs by allowing playback and capture to/from AFE proxy

Change-Id: I2c6a1ddec072e1d5f1a8b7ded874e9c082a7b810
diff --git a/hal/msm8960/platform.h b/hal/msm8960/platform.h
index 491aa1a..950ea84 100644
--- a/hal/msm8960/platform.h
+++ b/hal/msm8960/platform.h
@@ -142,4 +142,7 @@
 #define LOW_LATENCY_CAPTURE_PERIOD_SIZE 240
 #define LOW_LATENCY_CAPTURE_USE_CASE 0
 
+#define AFE_PROXY_PLAYBACK_PCM_DEVICE 7
+#define AFE_PROXY_RECORD_PCM_DEVICE 8
+
 #endif // QCOM_AUDIO_PLATFORM_H