RFR: 8348328: Update IANA Language Subtag Registry to Version 2025-05-15

Wed May 28 17:47:50 UTC 2025

On Wed, 28 May 2025 17:00:22 GMT, Justin Lu <jlu at openjdk.org> wrote:

> Please review this PR which updates the language subtag registry to Version 2025-05-15.
> 
> LanguageSubtagRegistryTest.java was updated with the preferred-values: `hnm`, `eko`, `luh`,`sjc`, `sqm`. A small change was also made to the test to improve the output as well.

Confirmed changes in lsrdata and test files correspond to those found in IANA Language Subtag Registry file dated 2025-05-15 as expected.

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Marked as reviewed by iris (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25503#pullrequestreview-2875936643