No LOCAL_MODULE_TAGS for host modules.

Change-Id: Icc84ac8091b8abd0161ca0ea1559df107e50201b
diff --git a/test/Android.mk b/test/Android.mk
index 408bb9c..1fb1d2d 100644
--- a/test/Android.mk
+++ b/test/Android.mk
@@ -56,7 +56,7 @@
   $(eval LOCAL_CFLAGS += $(3)) \
   $(eval LOCAL_STATIC_LIBRARIES := $(libgtest_test$(4)_static_lib)) \
   $(eval LOCAL_SHARED_LIBRARIES := $(libgtest_test$(4)_shared_lib)) \
-  $(eval LOCAL_MODULE_TAGS := tests) \
+  $(if $(2),,$(eval LOCAL_MODULE_TAGS := tests)) \
   $(eval LOCAL_MODULE_PATH := $($(5))) \
   $(eval include $(BUILD_$(2)EXECUTABLE)) \
 )