habanalabs/gaudi: do not move HBM bar if iATU done by FW

As iATU configuration is done by FW, driver should not try and
move HBM bar.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>