git: openjdk/jdk15u-dev: 8247432: Update IANA Language Subtag Registry to Version 2020-09-29

[Yuri Nesterenko]

Changeset: 22d0aab9
Author:    Yuri Nesterenko <yan at openjdk.org>
Date:      2021-05-13 12:10:43 +0000
URL:       https://git.openjdk.java.net/jdk15u-dev/commit/22d0aab9022e29e3b4db75ea4e236d74184c0204

8247432: Update IANA Language Subtag Registry to Version 2020-09-29

Backport-of: ae0ca743f5646a5312566a6a65ec8929fca4b372

! make/data/lsrdata/language-subtag-registry.txt
! test/jdk/java/util/Locale/Bug8040211.java