[openssl/tools] 2e35e5: Enable a different announcement for premium releases

[Richard Levitte]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/tools
  Commit: 2e35e54163b62f0cb558b07485c5c5b2d513628e
      https://github.com/openssl/tools/commit/2e35e54163b62f0cb558b07485c5c5b2d513628e
  Author: Richard Levitte <levitte at openssl.org>
  Date:   2023-06-23 (Fri, 23 Jun 2023)

  Changed paths:
    A release-tools/release-aux/openssl-announce-release-premium.tmpl
    A release-tools/release-aux/openssl-announce-release-public.tmpl
    R release-tools/release-aux/openssl-announce-release.tmpl
    A release-tools/release-aux/release-data-fn.sh
    M release-tools/release-aux/release-version-fn.sh
    M release-tools/stage-release.sh

  Log Message:
  -----------
  Enable a different announcement for premium releases

The basic data of what is considered premium and what is considered
public releases, a new bash function is added, std_release_type(), found in
release-tools/release-aux/release-data-fn.sh.

Along with this, the non-descript variable 'tag' is renamed to 'release_tag',
and a spelling error is corrected.

Fixes #157

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/tools/pull/160)