Improve timezone mapping for AIX platform

[Jonathan Lu]

Hi ppc-aix-port-dev, core-libs-dev,

Here's a patch for JDK-8034220,

http://cr.openjdk.java.net/~luchsh/JDK-8034220/

It is trying to add the a more complete timezone mapping mechanism for AIX
platform.
the changes are primarily based on IBM's commercial JDK code, which
includes:

- A new timezone mapping file added under directory jdk/src/aix/lib/
- Code to parse above config file, changed file is
src/solaris/native/java/util/TimeZone_md.c
- And also makefile change in make/CopyFiles.gmk to copy the config file

Could you pls help to review and give comments ?

Cheers
- Jonathan