[MINOR] uninline task_wakeup

task_wakup has become bigger since we used the trees. Let's not
inline it anymore.
diff --git a/src/task.c b/src/task.c
index 2fd6efa..d236d9f 100644
--- a/src/task.c
+++ b/src/task.c
@@ -43,6 +43,10 @@
     return __tree_delete(node);
 }
 
+struct task *_task_wakeup(struct task *t)
+{
+	return __task_wakeup(t);
+}
 /*
  * task_queue()
  *