add GENERIC-NODEBUG kernel configuration for arm64

[lifanov_mail.lifanov.com]

Summary

This adds a configuration for arm64 users that track CURRENT but don't need the extra debug facilities. This is produced with "svn cp amd64/conf/GENERIC-NODEBUG arm64/conf/GENERIC-NODEBUG" and changing two characters in the comment from amd64 to arm64.

Test Plan

This revision is submitted from my Raspberry Pi 3 running GENERIC-NODEBUG.

[lifanov_mail.lifanov.com]

Please ignore prop changes. I had to include a prop change to get arc lint to pass.

[emaste]

This LGTM

[lifanov_mail.lifanov.com]

Hi gnn, since you committed other ones, can you commit this one too please?

[gnn]

Committed revision 309791.