RFR: 8168909 aarch3264: arm32/64 port contribution cleanups

[Bob Vandette]

Please review these cleanups of the contributed ARM code.

Let me know what you think of the proposed new configure option for selecting the 64-bit
aarch64 port sources.

http://cr.openjdk.java.net/~bobv/8168909/webrev <http://cr.openjdk.java.net/~bobv/8168909/webrev>

Here’s what is changed:

1. Remove additional support for the no longer supported regenerated interpreter. 

2. Change the configure flag used to select arm or aarch64 hotspot directory to --with-cpu-port 

3. Changes to arm sources required due to last merge. Changes made in closed files need to be applied to new open files.


Bob.