[openssl/openssl] bbaa24: Add missing include for DH_get0_priv_key()

[Tomáš Mráz]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/openssl
  Commit: bbaa24b7c5ca4d712ad539d4c5ed16af0dd908f4
      https://github.com/openssl/openssl/commit/bbaa24b7c5ca4d712ad539d4c5ed16af0dd908f4
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2022-10-17 (Mon, 17 Oct 2022)

  Changed paths:
    M test/evp_extra_test2.c

  Log Message:
  -----------
  Add missing include for DH_get0_priv_key()

Fixes #19410

Reviewed-by: Richard Levitte <levitte at openssl.org>
Reviewed-by: Kurt Roeckx <kurt at roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/19411)