IO fault injection for OTA packages

Bug: 25951086
Change-Id: I31c74c735eb7a975b7f41fe2b2eff042e5699c0c
(cherry-picked from commit f1fc48c6e62cfee42d25ad12f443e22d50c15d0b)
diff --git a/Android.mk b/Android.mk
index a48980f..4da34ee 100644
--- a/Android.mk
+++ b/Android.mk
@@ -117,6 +117,7 @@
     $(LOCAL_PATH)/tools/Android.mk \
     $(LOCAL_PATH)/edify/Android.mk \
     $(LOCAL_PATH)/uncrypt/Android.mk \
+    $(LOCAL_PATH)/otafault/Android.mk \
     $(LOCAL_PATH)/updater/Android.mk \
     $(LOCAL_PATH)/update_verifier/Android.mk \
     $(LOCAL_PATH)/applypatch/Android.mk