RFR(XS): 8204292: PPC64: Fix missing includes after 8204195

[coleen.phillimore at oracle.com]

Looks good.  Sorry for breaking it. I thought I had added those 
includes, but I guess not.
Coleen

On 6/4/18 1:11 PM, Doerr, Martin wrote:
> Hi,
>
> please review my small build fix for PPC64:
> http://cr.openjdk.java.net/~mdoerr/8204292_ppc64_build/webrev.00/
>
> Best regards,
> Martin
>