hal: Add support for compressed capture

- Add support for AMR-WB compressed capture.

Change-Id: Ief591c5d1ccc6f8afb408abfff447787ee7bd7aa
diff --git a/hal/msm8974/platform.h b/hal/msm8974/platform.h
index 9d4378d..7d80906 100644
--- a/hal/msm8974/platform.h
+++ b/hal/msm8974/platform.h
@@ -182,6 +182,7 @@
 #else
 #define LOWLATENCY_PCM_DEVICE 15
 #endif
+#define COMPRESS_CAPTURE_DEVICE 19
 
 #ifdef PLATFORM_MSM8x26
 #define VOICE_CALL_PCM_DEVICE 2