mgr/vol: use pre-defined timeout period instead of hardcoded value

Currently timeout is set to 5. But hardcoding this is unnecessary since
the class already defines a attribute for this purpose. Use that
instead.

Signed-off-by: Rishabh Dave <[email protected]>

Author: rishabh-d-dave

src/pybind/mgr/volumes/fs/async_job.py

@@ -167,7 +167,7 @@ def run(self):
                     for i in range(c, self.nr_concurrent_jobs):
                         self.threads.append(JobThread(self, self.vc, name="{0}.{1}.{2}".format(self.name_pfx, time.time(), i)))
                         self.threads[-1].start()
-                self.cv.wait(timeout=5)
+                self.cv.wait(timeout=self.wakeup_timeout)
 
     def shutdown(self):
         self.stopping.set()