hg: jdk9/sandbox: Added default make target config. Added build_platform to profiles.

[erik.joelsson at oracle.com]

Changeset: c33e027ee71a
Author:    erikj
Date:      2015-10-30 15:40 +0100
URL:       http://hg.openjdk.java.net/jdk9/sandbox/rev/c33e027ee71a

Added default make target config. Added build_platform to profiles.

! common/autoconf/build-performance.m4
! common/autoconf/configure.ac
! common/autoconf/generated-configure.sh
! common/autoconf/spec.gmk.in
! common/conf/jab-profiles.conf
! make/Main.gmk