Audio HALs are 32-bit only

Change-Id: I97eef87849312610d82bc3f82e168bb40604e646
diff --git a/modules/usbaudio/Android.mk b/modules/usbaudio/Android.mk
index 199eb09..2acd171 100644
--- a/modules/usbaudio/Android.mk
+++ b/modules/usbaudio/Android.mk
@@ -24,6 +24,7 @@
 	external/tinyalsa/include
 LOCAL_SHARED_LIBRARIES := liblog libcutils libtinyalsa
 LOCAL_MODULE_TAGS := optional
+LOCAL_32_BIT_ONLY := true
 
 include $(BUILD_SHARED_LIBRARY)