[openssl/openssl] d3c5af: Fix the defective check of EVP_PKEY_get_params

[pauli]

  Branch: refs/heads/openssl-3.0
  Home:   https://github.openssl.org/openssl/openssl
  Commit: d3c5aff6cbf1ed6c855fb450b2caefbda8b9ce0f
      https://github.openssl.org/openssl/openssl/commit/d3c5aff6cbf1ed6c855fb450b2caefbda8b9ce0f
  Author: Peiwei Hu <jlu.hpw at foxmail.com>
  Date:   2022-05-26 (Thu, 26 May 2022)

  Changed paths:
    M crypto/evp/p_lib.c
    M doc/man3/EVP_PKEY_gettable_params.pod

  Log Message:
  -----------
  Fix the defective check of EVP_PKEY_get_params

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18367)

(cherry picked from commit 7e5e91176b770a68bdaf73a5c647f1fc0d7f2900)