RFR: 8305174: disable dtrace for s390x builds

[Amit Kumar]

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

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Commit messages:
 - disable dtrace feature

Changes: https://git.openjdk.org/jdk/pull/13228/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13228&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305174
  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/13228.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13228/head:pull/13228

PR: https://git.openjdk.org/jdk/pull/13228