[jdk13u-dev] RFR: 8267038: Update IANA Language Subtag Registry to Version 2022-03-02

[Yuri Nesterenko]

Backporting this update for consistency. Clean backport with language-subtag-registry.txt still in make subtree instead of java.base.

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Commit messages:
 - Backport 7b19226be24356572df493446e3b0a9380b3d217

Changes: https://git.openjdk.org/jdk13u-dev/pull/437/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk13u-dev&pr=437&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8267038
  Stats: 281 lines in 2 files changed: 271 ins; 2 del; 8 mod
  Patch: https://git.openjdk.org/jdk13u-dev/pull/437.diff
  Fetch: git fetch https://git.openjdk.org/jdk13u-dev pull/437/head:pull/437

PR: https://git.openjdk.org/jdk13u-dev/pull/437