RFR: 8344093: Implement JEP 501: Deprecate the 32-bit x86 Port for Removal [v4]

[Aleksey Shipilev]

> WIP, as the JEP is still not targeted. We can review code meanwhile.
> 
> Additional testing:
>  - [x] Linux x86-32 build configure fails by default
>  - [x] Linux x86-32 build configures well with `--enable-deprecated-ports=yes`
>  - [x] GHA

Aleksey Shipilev has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Merge branch 'master' into JDK-8344093-x86-32-deprecation
 - Merge branch 'master' into JDK-8344093-x86-32-deprecation
 - Merge branch 'master' into JDK-8344093-x86-32-deprecation
 - Initial work

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/22062/files
  - new: https://git.openjdk.org/jdk/pull/22062/files/83f9f061..0924c098

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=22062&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=22062&range=02-03

  Stats: 95873 lines in 1498 files changed: 45483 ins; 44295 del; 6095 mod
  Patch: https://git.openjdk.org/jdk/pull/22062.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22062/head:pull/22062

PR: https://git.openjdk.org/jdk/pull/22062