build 32- and 64-bit libs (auto-generated)

Change-Id: Iccb63cafc5db17abd423d589416d50ff21c89efa
diff --git a/tests/bar/1.0/Android.mk b/tests/bar/1.0/Android.mk
index 73359c0..6d33182 100644
--- a/tests/bar/1.0/Android.mk
+++ b/tests/bar/1.0/Android.mk
@@ -32,6 +32,7 @@
   libutils \
   android.hardware.tests.foo@1.0 \
 
+LOCAL_MULTILIB := both
 LOCAL_COMPATIBILITY_SUITE := vts
 -include test/vts/tools/build/Android.packaging_sharedlib.mk
 include $(BUILD_SHARED_LIBRARY)