[8u60] Request for backport approval: 8068927: AARCH64: better handling of aarch64- triples

[Dean Long]

I would like to backport "8068927: AARCH64: better handling of aarch64- 
triples" to 8u60.  This is a followup to "8064357: AARCH64: Top-level 
JDK changes".

Bug:

https://bugs.openjdk.java.net/browse/JDK-8068927

Original review thread:

http://mail.openjdk.java.net/pipermail/build-dev/2015-January/014052.html

The jdk9 changeset is here:

http://hg.openjdk.java.net/jdk9/dev/rev/c360aeb77273

The patch imported cleanly.  Let me know if there are any concerns about
this backport.

thanks,

dl