habanalabs: correctly report inbound pci region cfg error

During inbound iATU configuration we can get errors while
configuring PCI registers, there is a certain scenario in which these
errors are not reflected and driver is loaded with wrong configuration.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>