[openssl/openssl] a901b3: Minor refactoring of the Argon2 derive function

[Tomáš Mráz]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: a901b31e99442f087051ae7efdcbc9ad6e6a5b33
      https://github.com/openssl/openssl/commit/a901b31e99442f087051ae7efdcbc9ad6e6a5b33
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2023-04-21 (Fri, 21 Apr 2023)

  Changed paths:
    M providers/implementations/kdfs/argon2.c

  Log Message:
  -----------
  Minor refactoring of the Argon2 derive function

Cache the fetched MAC and MD implementation until propq changes.
No need to keep the output stored in the context.

Reviewed-by: Tom Cosgrove <tom.cosgrove at arm.com>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/20534)