Audio HALs are 32-bit only

Change-Id: I97eef87849312610d82bc3f82e168bb40604e646
diff --git a/modules/audio/Android.mk b/modules/audio/Android.mk
index 49ed312..84d8203 100644
--- a/modules/audio/Android.mk
+++ b/modules/audio/Android.mk
@@ -27,6 +27,7 @@
 LOCAL_SRC_FILES := audio_hw.c
 LOCAL_SHARED_LIBRARIES := liblog libcutils
 LOCAL_MODULE_TAGS := optional
+LOCAL_32_BIT_ONLY := true
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -39,5 +40,6 @@
 LOCAL_SRC_FILES := audio_policy.c
 LOCAL_SHARED_LIBRARIES := liblog libcutils
 LOCAL_MODULE_TAGS := optional
+LOCAL_32_BIT_ONLY := true
 
 include $(BUILD_SHARED_LIBRARY)