Support signature size of 512 bytes am: 3dbe64e9f2
am: 9ddc71ac7b

Change-Id: I665d88df722dcee00d44c12bc5370f47047a05bc
diff --git a/Android.bp b/Android.bp
index 8b1730b..284845d 100644
--- a/Android.bp
+++ b/Android.bp
@@ -728,3 +728,12 @@
         },
     },
 }
+
+// AIDL interface between libupdate_engine and the Things jar.
+filegroup {
+    name: "things_update_engine_aidl",
+    srcs: [
+        "binder_bindings/android/brillo/IUpdateEngine.aidl",
+        "binder_bindings/android/brillo/IUpdateEngineStatusCallback.aidl",
+    ],
+}