habanalabs: add CS completion and timeout properties

In order to support staged submission feature, we need to
distinguish on which command submission we want to receive
timeout and for which we want to receive completion.

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