<i18n dev> RFR: 8287180: Update IANA Language Subtag Registry to Version 2022-08-08

[Naoto Sato]

On Mon, 3 Oct 2022 20:03:42 GMT, Justin Lu <duke at openjdk.org> wrote:

> Problem: IANA Language subtag registry is outdated
> Fix: Updated from version 2022-03-02 to 2022-08-08 -> [IANA registry](https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry)

Although there aren't actual code changes, I believe the test `test/jdk/java/util/Locale/LanguageSubtagRegistryTest.java` should be modified as well.

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Changes requested by naoto (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10546