policy: Add support for multiple instances of offload playback

Add support for multiple offload playback instances

Change-Id: Icab3c7d6e89121a7aa23744729a634d8e402fabf
diff --git a/policy_hal/Android.mk b/policy_hal/Android.mk
index 517f207..480df92 100644
--- a/policy_hal/Android.mk
+++ b/policy_hal/Android.mk
@@ -39,6 +39,9 @@
 LOCAL_CFLAGS += -DWFD_CONCURRENCY
 endif
 
+ifeq ($(strip $(AUDIO_FEATURE_ENABLED_MULTIPLE_TUNNEL)), true)
+LOCAL_CFLAGS += -DMULTIPLE_OFFLOAD_ENABLED
+endif
 
 
 include $(BUILD_SHARED_LIBRARY)