ntoskrnl: Add KeQueryPriorityThread stub
Range of possible return values taken from https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-kequeryprioritythread
Range of possible return values taken from https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-kequeryprioritythread