Add thread startup stub

xtoskrnl/ke/kthread.cc

@@ -265,6 +265,19 @@ KE::KThread::InitializeThread(IN PKPROCESS Process,
     return STATUS_SUCCESS;
 }
 
+/**
+ * Serves as the initial execution point for all threads after first context switch.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+KE::KThread::RunThread(VOID)
+{
+}
+
 /**
  * Starts the thread.
  *