Make a fake libart for misbehaving apps.

Bug: 27775991
Change-Id: I22864aa22d4864d85e055a5b1d3ff1faf122011b
(cherry picked from commit b270b9e6cba453209e226b0f621c75f2e51f122a)
diff --git a/Android.mk b/Android.mk
index 25796a0..bb1334a 100644
--- a/Android.mk
+++ b/Android.mk
@@ -93,6 +93,7 @@
 include $(art_path)/tools/dexfuzz/Android.mk
 include $(art_path)/tools/dmtracedump/Android.mk
 include $(art_path)/sigchainlib/Android.mk
+include $(art_path)/libart_fake/Android.mk
 
 
 # ART_HOST_DEPENDENCIES depends on Android.executable.mk above for ART_HOST_EXECUTABLES