RFR: 8235960: Zero should not trigger the deprecation warning for ports

[John Paul Adrian Glaubitz]

Hi!

JDK-8234370 introduced a deprecation warning for ports that are going to be removed
in the future. The change in question checks for the target architecture and operating
system but does however does not account for the Zero variant which doesn't need support
for a specific target besides a few autonconf definitions and some #ifdef magic.

This change extends the change from JDK-8234370 to additionally test whether we're building
the Zero variant. With this change, I can configure OpenJDK Zero on a Linux/SPARC target
again without getting a deprecation message.

Please review.

Thanks,
Adrian

> [1] http://cr.openjdk.java.net/~glaubitz/8235960/webrev.00/

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 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz at debian.org
`. `'   Freie Universitaet Berlin - glaubitz at physik.fu-berlin.de
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