<i18n dev> RFR: 8267038: Update IANA Language Subtag Registry to Version 2022-03-02

[Naoto Sato]

This is to incorporate the latest language subtag registry definition (version 2022-03-02) into JDK19.

-------------

Commit messages:
 - LSR 2022-03-02
 - LSR 2021-12-29
 - LSR 2021-08-06
 - LSR 2021-07-21

Changes: https://git.openjdk.java.net/jdk/pull/8776/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8776&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267038
  Stats: 281 lines in 2 files changed: 271 ins; 2 del; 8 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8776.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8776/head:pull/8776

PR: https://git.openjdk.java.net/jdk/pull/8776