RFR: JDK-8199423: Create builds-infra Mach5 job

[Magnus Ihse Bursie]

> 9 mars 2018 kl. 20:32 skrev Erik Joelsson <erik.joelsson at oracle.com>:
> 
> The open part of this change adds a few build infra specific Jib build profiles.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8199423
> 
> Webrev: http://cr.openjdk.java.net/~erikj/8199423/webrev.01/

Looks good to me.

/Magnus
> 
> /Erik
>