Add optional tags to dalvik.

Change-Id: I29a78ccb6312d12b3ef0ed02cfbc638a5b01db9c
diff --git a/dexdump/Android.mk b/dexdump/Android.mk
index 026067b..89749d6 100644
--- a/dexdump/Android.mk
+++ b/dexdump/Android.mk
@@ -43,7 +43,7 @@
 LOCAL_SHARED_LIBRARIES := $(dexdump_shared_libraries) libz liblog
 LOCAL_STATIC_LIBRARIES := $(dexdump_static_libraries)
 LOCAL_MODULE_PATH := $(TARGET_OUT_OPTIONAL_EXECUTABLES)
-LOCAL_MODULE_TAGS := debug
+LOCAL_MODULE_TAGS := optional
 LOCAL_LDLIBS +=
 include $(BUILD_EXECUTABLE)
 
@@ -58,6 +58,7 @@
 ifneq ($(TARGET_SIMULATOR),true) # not 64 bit clean
 include $(CLEAR_VARS)
 LOCAL_MODULE := dexdump
+LOCAL_MODULE_TAGS := optional
 LOCAL_SRC_FILES := $(dexdump_src_files)
 LOCAL_C_INCLUDES := $(dexdump_c_includes)
 LOCAL_SHARED_LIBRARIES := $(dexdump_shared_libraries)