Add unbind() binder API. am: 5caab19d5a am: a846fe048d am: 4fa1684b29
am: e4e5faa262

Change-Id: I324c4847ef49d0fb6a7da84a9561d27be3321037
GitOrigin-RevId: 6f588af5f3e236f8253109399333e685c91f9d3d
diff --git a/binder_bindings/android/os/IUpdateEngine.aidl b/binder_bindings/android/os/IUpdateEngine.aidl
index 67f828a..7e26752 100644
--- a/binder_bindings/android/os/IUpdateEngine.aidl
+++ b/binder_bindings/android/os/IUpdateEngine.aidl
@@ -28,6 +28,8 @@
   /** @hide */
   boolean bind(IUpdateEngineCallback callback);
   /** @hide */
+  boolean unbind(IUpdateEngineCallback callback);
+  /** @hide */
   void suspend();
   /** @hide */
   void resume();