Change to use pulseaudio old tunnelin module

[josa41]

There seems to be issues with pulseaudio module-tunnel -new modules The modules cause desync in audio that is not recoverable. The bugs of this in pulseaudio are some 10 years old and seem not to get fixed.

Description of changes

Checklist for things done

• [X] Summary of the proposed changes in the PR description
• [X] More detailed description in the commit message(s)
• [X] Commits are squashed into relevant entities - avoid a lot of minimal dev time commits in the PR
• [X] Contribution guidelines followed
• [ ] Ghaf documentation updated with the commit - https://tiiuae.github.io/ghaf/
• [X] PR linked to architecture documentation and requirement(s) (ticket id)
• [X] Test procedure described (or includes tests). Select one or more:
  • [X] Tested on Lenovo X1 x86_64
  • [ ] Tested on Jetson Orin NX or AGX aarch64
  • [ ] Tested on Polarfire riscv64
• [ ] Author has run make-checks and it passes
• [ ] All automatic Github Action checks pass - see actions
• [X] Author has added reviewers and removed PR draft status
• [ ] Change requires full re-installation
• [X] Change can be updated with nixos-rebuild ... switch

Instructions for Testing

• [ ] List all targets that this applies to:
• [ ] Is this a new feature
  • [X] List the test steps to verify:
• [ ] If it is an improvement how does it impact existing functionality?

This applies only for audio in pulseaudio tunneling mode. Requires setting property "ghafAudio.useTunneling = true;" for some application VM to enable this feature (the default is not use tunneling).