hg: jigsaw/jake: Specify OS_* properties to release file at build time. Restore JDK 8 values

[mandy.chung at oracle.com]

Changeset: cc2f50bc047d
Author:    mchung
Date:      2017-05-01 21:10 -0700
URL:       http://hg.openjdk.java.net/jigsaw/jake/rev/cc2f50bc047d

Specify OS_* properties to release file at build time. Restore JDK 8 values

! common/autoconf/generated-configure.sh
! common/autoconf/platform.m4
! common/autoconf/spec.gmk.in
! make/ReleaseFile.gmk