Merging ppc64 port into jdk9

[Vladimir Kozlov]

Hi,

I am waiting approval from SQE and start thinking about merge itself.

I think the best would be to merge into one of our group repos, for 
example jdk9/hs-comp, to get extensive Nightly and other testing before 
propagating into jdk9 master.

The main question for me is what about jdk and top dir changes? They 
will not be tested until they are propagated into jdk9/dev.

Is it possible to split the merge and push Hotspot changes into 
jdk9/hs-comp/hotspot and the rest into jdk9/dev?

I will try to do JPRT control run of stage-9 without Hotspot changes.

thanks,
Vladimir