[roll] Roll fuchsia Reland "[audio] Add simple composite virtual audio"

This reverts commit 3eda2972e815a3572c95d4167bfc7608e75de03b.

Reason for revert: Reason for the flake is resolved with fxrev.dev/871738

Original change's description:
> Revert "[audio] Add simple composite virtual audio"
>
> This reverts commit 8aeae218eba43b2d66386f6d8c674dff6f3f0a0f.
>
> Reason for revert: CI failure.
>
> Original change's description:
> > [audio] Add simple composite virtual audio
> >
> > The default virtualaudio Composite driver reports a single ring buffer
> > and a single DAI interconnect in its signal processing elements, much
> > like a DAI driver type.
> >
> > Original-Bug: 124865
> >
> > Test: Add a composite virtual audio driver in one terminal:
> > $ fx shell virtual_audio --composite --add --wait
> > Executing `--composite' command...
> > Then execute audio_driver_tests in another terminal:
> > $ fx test audio_driver_tests -- --devfs-only --admin --no-virtual
> >
> > Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/850100
>
> Original-Bug: 124865
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/870344

Original-Bug: 124865
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/872667
Original-Revision: e7a592747b319e49ae110617a8cba479e2858ee5
GitOrigin-RevId: 997978ac65a04914673c4204142e9c5a8f7f719c
Change-Id: Ia5d79640cc5fd079476440c37aa99afb727aef2f