git: openjdk/jdk13u-dev: 8241082: Upgrade IANA Language Subtag Registry data to 03-16-2020 version

[Yuri Nesterenko]

Changeset: ab400f76
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2021-05-19 11:30:22 +0000
URL:       https://git.openjdk.java.net/jdk13u-dev/commit/ab400f766334920465ff1c112c6472a7e124a834

8241082: Upgrade IANA Language Subtag Registry data to 03-16-2020 version

Backport-of: e5e24ad08091b1b256cbc064320766b24036daf0

! make/data/lsrdata/language-subtag-registry.txt
! make/jdk/src/classes/build/tools/generatelsrequivmaps/EquivMapsGenerator.java
! test/jdk/java/util/Locale/Bug8040211.java