habanalabs: change wait for interrupt timeout to 64 bit

In order to increase maximum wait-for-interrupt timeout, change it
to 64 bit variable. This wait is used only by newer ASICs, so no
problem in changing this interface at this time.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>