RFR (XXS): 8212698: Minor g1 #include changes and memoryService.hpp copyright date update

[Kim Barrett]

> On Oct 19, 2018, at 2:40 PM, Hohensee, Paul <hohensee at amazon.com> wrote:
> 
> A trivial patch to fix 3 misc. issues.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8212698
> Webrev: http://cr.openjdk.java.net/~phh/8212698/webrev.00/
> 
> Thanks,
> 
> Paul

Looks good.