Periodically wake up the thread in monitor::wait

There is a small window where a thread can go to sleep in
Monitor::wait after releasing the lock but before another thread
notifies the monitor and updates the on-deck thread.

A simple approach to fix this problem is to wake-up the Monitor::wait
every 10 milliseconds and check if it is on-deck.

Change-Id: I4b9abda89d1fc653cdae2b4c84cdda01efde1cf2

rocclr/thread/monitor.cpp

@@ -251,7 +251,7 @@ void Monitor::wait() {
     }
     // now go to sleep
     else {
-      suspend.wait();
+      suspend.timedWait(10);
     }
     spinCount++;
   }