[jdk17u-dev] RFR: 8306031: Update IANA Language Subtag Registry to Version 2023-04-13

[Goetz Lindenmaier]

I backport this for parity with 17.0.12-oracle.

Resolved Copyright and file location. Will mark clean if not recognized as such.

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Commit messages:
 - Backport  00b1eacad6ae2d5ea5afb1de506768e9ab960743

Changes: https://git.openjdk.org/jdk17u-dev/pull/2364/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2364&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306031
  Stats: 37 lines in 3 files changed: 19 ins; 0 del; 18 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2364.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2364/head:pull/2364

PR: https://git.openjdk.org/jdk17u-dev/pull/2364