[openssl/openssl] 524bac: Fix BIO_get_ktls_send/recv to return 0 or 1 only

[Tomas Mraz]

  Branch: refs/heads/master
  Home:   https://github.openssl.org/openssl/openssl
  Commit: 524bac570702a79366b85ff1f66e07d3e002370c
      https://github.openssl.org/openssl/openssl/commit/524bac570702a79366b85ff1f66e07d3e002370c
  Author: Tomas Mraz <tomas at openssl.org>
  Date:   2022-05-16 (Mon, 16 May 2022)

  Changed paths:
    M doc/man3/BIO_ctrl.pod
    M include/openssl/bio.h.in

  Log Message:
  -----------
  Fix BIO_get_ktls_send/recv to return 0 or 1 only

Fixes #18176

Reviewed-by: Matt Caswell <matt at openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger at hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/18178)