habanalabs: wait for preboot ready after hard reset

Currently we are not waiting for preboot ready after hard reset.
This leads to a race in which COMMs protocol begins but will get no
response from the f/w.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>