control: HS_DESC event failed upload sends back the wrong Action
When a descriptor upload fails, tor sends on the control port a
UPLOAD_FAILED event where in fact it should be sending a
FAILED event as the action with the reason:
control_event_hs_descriptor_upload_failed() is the offending function.
The control spec does not specify at all the
Action=UPLOAD_FAILED nor Stem for instance knows about it so this is a problem on tor side.