hg: build-infra/jdk9: Allow all variants always on new build.

[magnus.ihse.bursie at oracle.com]

Changeset: 67174aa6b05c
Author:    ihse
Date:      2016-01-19 22:17 +0100
URL:       http://hg.openjdk.java.net/build-infra/jdk9/rev/67174aa6b05c

Allow all variants always on new build.

! common/autoconf/generated-configure.sh
! common/autoconf/hotspot.m4
! common/autoconf/source-dirs.m4