Fix audio freeze with VirtualBox image
Playing 2 audio files in a raw using pw-cat
freezes the second one on
VirtualBox image.
Pipewire simply underruns and never recovers, see:
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/469#note_768518
Configuring the headroom and period-size fixes the issue.
Signed-off-by: Frédéric Danis frederic.danis@collabora.com