hal: fix audio compilation for techpack.

Change-Id: Ifd3ddf97b7a642569bfbc99a00d48bc781590212
diff --git a/post_proc/Android.mk b/post_proc/Android.mk
index ad6e4ac..0fdd136 100644
--- a/post_proc/Android.mk
+++ b/post_proc/Android.mk
@@ -49,6 +49,7 @@
 LOCAL_C_INCLUDES := \
         external/tinyalsa/include \
         $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include \
+	$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/techpack/audio/include \
         $(call include-path-for, audio-effects)
 
 include $(BUILD_SHARED_LIBRARY)
@@ -106,6 +107,7 @@
 LOCAL_C_INCLUDES := \
         hardware/qcom/audio/hal \
         $(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/include \
+	$(TARGET_OUT_INTERMEDIATES)/KERNEL_OBJ/usr/techpack/audio/include \
         external/tinyalsa/include \
         $(call include-path-for, audio-effects) \
         $(call include-path-for, audio-route) \