hg: jdk9/sandbox/jdk: 8163102: Fix headless only configuration option

[chris.hegarty at oracle.com]

Changeset: 2b6aebac0773
Author:    erikj
Date:      2016-09-26 14:56 +0200
URL:       http://hg.openjdk.java.net/jdk9/sandbox/jdk/rev/2b6aebac0773

8163102: Fix headless only configuration option
Reviewed-by: tbell

! make/launcher/Launcher-java.desktop.gmk
! make/launcher/Launcher-jdk.policytool.gmk
! make/lib/Awt2dLibraries.gmk
! src/java.desktop/unix/native/libjawt/jawt.c