habanalabs: modify wait for boot fit in dynamic FW load

In the dynamic FW load protocol the boot status is updated to
"Ready to Boot" once uboot is active.

Polling on other boot status values is a residue of code duplication
from the static protocol and should be removed.

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