[PATCH, v3]: AMD btver1 and btver2 enablement

[Eggone, NagaJyothi]

> >> H.J.
> >
> > Re-submitting with changes.
> >
> 
> I fixed ChangeLog entries and checked it for you.
> Please submit proper ChangeLog entries next
> time.
> 
> 
> --
> H.J.

Thanks!

Nagajyothi