fwk: fwk_thread_put_event_and_wait could process NULL event
Created by: jimqui01
The fwk_thread_put_event_and_wait processing could try and use a NULL event if both the event queue and the ISR event queues are empty.
Change-Id: I461a32c3040293c9c8928e60d01dc17bdefff4aa Signed-off-by: Jim Quigley jim.quigley@arm.com