[jdk15u-dev] RFR: 8287180: Update IANA Language Subtag Registry to Version 2022-08-08

[Yuri Nesterenko]

Backporting this update for parity with Oracle and general consistency. All relevant tests do pass.

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Commit messages:
 - Backport 992f209deffac50635646b42ec4220bfbfc96d39

Changes: https://git.openjdk.org/jdk15u-dev/pull/311/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk15u-dev&pr=311&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8287180
  Stats: 16 lines in 2 files changed: 14 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk15u-dev/pull/311.diff
  Fetch: git fetch https://git.openjdk.org/jdk15u-dev pull/311/head:pull/311

PR: https://git.openjdk.org/jdk15u-dev/pull/311