[openssl/openssl] c122d1: [doc] Sync documentation now that 3.0 honors OSSL_...

[Nicola Tuveri]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: c122d15039ac94e98bc6cd903c78f4696144d1e0
      https://github.com/openssl/openssl/commit/c122d15039ac94e98bc6cd903c78f4696144d1e0
  Author: Nicola Tuveri <nic.tuv at gmail.com>
  Date:   2023-01-31 (Tue, 31 Jan 2023)

  Changed paths:
    M CHANGES.md
    M doc/man7/EVP_PKEY-EC.pod

  Log Message:
  -----------
  [doc] Sync documentation now that 3.0 honors OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT

https://github.com/openssl/openssl/pull/19901 backported the
"Honor OSSL_PKEY_PARAM_EC_POINT_CONVERSION_FORMAT as set and default to
UNCOMPRESSED" changeset to 3.0.

This commit updates:

- the HISTORY notes of the relevant documentation to mark the change
  happened since 3.0.8.

- the `CHANGES.md file` to sync up with the tip of the `openssl-3.0`
  branch

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Tim Hudson <tjh at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20003)

(cherry picked from commit f66c1272f92bed6bc8aa17f6a8956d9e2e5b7798)