habanalabs: fix little-endian<->cpu conversion warnings

Add __cpu_to_le16/32/64 and __le16/32/64_to_cpu where needed according to
sparse.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>