Update mkstubs from ASM 3.1 to ASM 4.0

Change-Id: If43fcdba7070af8ae3d72e7e30a1dcbe11a217ec
diff --git a/tools/mkstubs/Android.mk b/tools/mkstubs/Android.mk
index a12bf18..3e46a1d 100644
--- a/tools/mkstubs/Android.mk
+++ b/tools/mkstubs/Android.mk
@@ -20,7 +20,7 @@
 
 LOCAL_JAR_MANIFEST := manifest.txt
 LOCAL_STATIC_JAVA_LIBRARIES := \
-	asm-3.1
+	asm-4.0
 
 LOCAL_MODULE := mkstubs