RFR: 8337603: Change in behavior with -Djava.locale.useOldISOCodes=true

[Naoto Sato]

Fixing a regression caused by the removal of the legacy locale data. Legacy locale data happened to have resource bundle for "he" language (new ISO code) with the launguage name for "iw" (old ISO code). CLDR does not have it, thus the name fell back to English.

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Commit messages:
 - initial commit

Changes: https://git.openjdk.org/jdk/pull/20474/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20474&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8337603
  Stats: 45 lines in 2 files changed: 42 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/20474.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20474/head:pull/20474

PR: https://git.openjdk.org/jdk/pull/20474