[aarch64-port-dev ] hg: aarch64-port/jdk8: Added build scripts and updated README.aarch64 explaining how to use them

[adinn at redhat.com]

Changeset: 6686dd492106
Author:    adinn
Date:      2013-07-05 12:39 +0100
URL:       http://hg.openjdk.java.net/aarch64-port/jdk8/rev/6686dd492106

Added build scripts and updated README.aarch64 explaining how to use them

Still need to add details of how to obtain and set up the ARM
fastmodel and a Linux sysroot and how to run on the fastmodel.

! README.aarch64
+ cross_compile
+ cross_configure
+ sim_compile
+ sim_configure