[openssl/openssl] fe24a0: Improve the performance of d2i_AutoPrivateKey and ...

[Matt Caswell]

  Branch: refs/heads/openssl-3.1
  Home:   https://github.com/openssl/openssl
  Commit: fe24a06cfad90400e6841f461851a85d9a738f53
      https://github.com/openssl/openssl/commit/fe24a06cfad90400e6841f461851a85d9a738f53
  Author: Matt Caswell <matt at openssl.org>
  Date:   2023-03-15 (Wed, 15 Mar 2023)

  Changed paths:
    M crypto/asn1/d2i_pr.c

  Log Message:
  -----------
  Improve the performance of d2i_AutoPrivateKey and friends

Probe first to see if we have a PKCS8 file to improve decoder performance.

Reviewed-by: Tomas Mraz <tomas at openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit at gmail.com>
(Merged from https://github.com/openssl/openssl/pull/20416)

(cherry picked from commit dba97d4c7142621fb279ef2074cd5c0a04eca7d3)