[openssl/openssl] 4febab: Don't create an ack frame if one isn't wanted for ...

[Matt Caswell]

  Branch: refs/heads/openssl-3.2
  Home:   https://github.com/openssl/openssl
  Commit: 4febab7d808c2c746ded9424ceff4163bdae3278
      https://github.com/openssl/openssl/commit/4febab7d808c2c746ded9424ceff4163bdae3278
  Author: Matt Caswell <matt at openssl.org>
  Date:   2023-11-01 (Wed, 01 Nov 2023)

  Changed paths:
    M ssl/quic/quic_txp.c

  Log Message:
  -----------
  Don't create an ack frame if one isn't wanted for this pn_space

The txp->want_ack value has different bit values for different pn_space
values. Make sure we take that into account when we read it.

Fixes #22568

Reviewed-by: Hugo Landau <hlandau at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/openssl/pull/22579)

(cherry picked from commit d13488b93690121bd50c97599760a19ead6bcd1f)