pull request #1: Add hal.h from the prima driver

[Kalle Valo]

Eugene Krasnikov <k.eugene.e at gmail.com> writes:

> Agree completely that we need to get this in ASAP. I will review changes today.

Thanks.

I'm looking at building compat-drivers right now

>>Most likely we need to handle these fw api changes dynamically
>
> Do you mean to do it in iterations?

I mean that in the future we need to somehow runtime detect what version
of FW API is used and adapt to that. But that's far away in the future,
we first need to get basic functionality working.

-- 
Kalle Valo