[jdk13u-dev] Integrated: 8241082: Upgrade IANA Language Subtag Registry data to 03-16-2020 version

[Yuri Nesterenko]

The change should be backported to 13u too, to keep it up to date. Applies cleanly, test do pass.

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Commit messages:
 - Backport e5e24ad08091b1b256cbc064320766b24036daf0

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/217/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=217&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8241082
  Stats: 25 lines in 3 files changed: 16 ins; 3 del; 6 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/217.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/217/head:pull/217

PR: https://git.openjdk.java.net/jdk13u-dev/pull/217