RFR: 8305174: disable dtrace for s390x builds

[Lutz Schmidt]

On Wed, 29 Mar 2023 13:04:39 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> As stated in JBS-issue, `dtrace` functionality is not available on s390x. So disabling it explicitly in the build.

Looks good and trivial.

For formal reasons, we may want to wait for the GHA to complete before we <slash>integrate and <slash>sponsor.

There always is confusion wrt what is the right string. For me - and there is some ancient history knowledge attached - 

- s390 indicates the processor architecture (formerly S/370, S/390; nowadays z/Architecture)
- s390x encodes the processor architecture/operating system combination Linux on S/390. 

In the m4 files, both strings are used to identify the processor architecture only.

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Marked as reviewed by lucy (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/13228#pullrequestreview-1363155071
PR Comment: https://git.openjdk.org/jdk/pull/13228#issuecomment-1488650865