[openssl/openssl] ec2614: Prepare NonStop for fixed-size integer types.

[pauli]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: ec26144288fd6dce6dd76bd9e2b192b495033723
      https://github.openssl.org/openssl/openssl/commit/ec26144288fd6dce6dd76bd9e2b192b495033723
  Author: Randall S. Becker <rsbecker at nexbridge.com>
  Date:   2022-05-19 (Thu, 19 May 2022)

  Changed paths:
    M Configurations/50-nonstop.conf
    M include/openssl/e_os2.h

  Log Message:
  -----------
  Prepare NonStop for fixed-size integer types.

This commit removes platform defines the interfere with loading and resolution
of platform and memory model variants of integer types and includes the
appropriate files, stdint.h and sys/types.h where the types are defined.

Fixes #17669

Signed-off-by: Randall S. Becker <rsbecker at nexbridge.com>

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Richard Levitte <levitte at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18325)