Enable Intel WBNOINVD instruction

[H.J. Lu]

On Tue, Jan 23, 2018 at 7:32 AM, Tsimbalist, Igor V
<igor.v.tsimbalist@intel.com> wrote:
> Intel has disclosed a set of new instructions for Icelake processor. The spec is
> https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf
>
> This patch enables Intel WBNOINVD instruction.
>
> Ok for trunk?

OK with mention ISA spec in commit log.

Thanks.

-- 
H.J.