hg: jdk/sandbox: 8211106: [windows] Update OS detection code to recognize Windows Server 2019

[chris.hegarty at oracle.com]

Changeset: c02aa8873ff2
Author:    mbaesken
Date:      2018-10-02 13:48 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/c02aa8873ff2

8211106: [windows] Update OS detection code to recognize Windows Server 2019
Reviewed-by: alanb, clanger, bobv

! src/hotspot/os/windows/os_windows.cpp
! src/java.base/windows/native/libjava/java_props_md.c