Make releaseSomeActivities() a oneway call.

This is called from a GC handler hook in BinderInternal, from the
finalizer thread. It's a call from an app process into system_server. On
some devices, we observed this call taking a long time, causing
TimeoutExceptions on the finalizer thread.

Since this work is not critical, and when the GC runs is anyway
unpredictable, make releaseSomeActivities() oneway instead.

Bug: 118997212
Test: TH
Change-Id: I6b06917493a09a2fba63502c4bd1a203c184a62c
Merged-In: I6b06917493a09a2fba63502c4bd1a203c184a62c

core/java/android/app/IActivityTaskManager.aidl

@@ -223,7 +223,7 @@ interface IActivityTaskManager {
      */
     IBinder requestStartActivityPermissionToken(in IBinder delegatorToken);
 
-    void releaseSomeActivities(in IApplicationThread app);
+    oneway void releaseSomeActivities(in IApplicationThread app);
     Bitmap getTaskDescriptionIcon(in String filename, int userId);
     void registerTaskStackListener(in ITaskStackListener listener);
     void unregisterTaskStackListener(in ITaskStackListener listener);