RFR: 8308246: PPC64le build broken after JDK-8304913 [v2]

[Martin Doerr]

> PPC64le needs to get recognized as PPC64. Otherwise, jlink doesn't recognize the platform and throws a PluginException: ModuleTarget is malformed: No enum constant jdk.internal.util.Architecture.PPC64LE.

Martin Doerr has updated the pull request incrementally with one additional commit since the last revision:

  Review feedback.

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Changes:
  - all: https://git.openjdk.org/jdk/pull/14027/files
  - new: https://git.openjdk.org/jdk/pull/14027/files/059c1ba2..37ae111e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=14027&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=14027&range=00-01

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/14027.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/14027/head:pull/14027

PR: https://git.openjdk.org/jdk/pull/14027