[jdk8u-dev] RFR: 8301631: [8u] Enable full builds for additional Linux builds

[Andrew John Hughes]

Let's try to enable full builds for the additional (i.e. cross-compilation to s390x, aarch64, arm & ppc64le) builds, so the JDK native code gets built as well.

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Commit messages:
 - 8301631: [8u] Enable full builds for additional Linux builds

Changes: https://git.openjdk.org/jdk8u-dev/pull/259/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=259&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8301631
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/259.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/259/head:pull/259

PR: https://git.openjdk.org/jdk8u-dev/pull/259