core: clean up warnings

src/core/hle/kernel/thread.cpp

@@ -188,7 +188,7 @@ void ExitCurrentThread() {
  * @param thread_handle The handle of the thread that's been awoken
  * @param cycles_late The number of CPU cycles that have passed since the desired wakeup time
  */
-static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) {
+static void ThreadWakeupCallback(u64 thread_handle, s64 cycles_late) {
     SharedPtr<Thread> thread = wakeup_callback_handle_table.Get<Thread>((Handle)thread_handle);
     if (thread == nullptr) {
         LOG_CRITICAL(Kernel, "Callback fired for invalid thread {:08X}", (Handle)thread_handle);