audio: Depend on dbus_display1_dep

audio: Depend on dbus_display1_dep

dbusaudio needs dbus_display1_dep.

Fixes: 739362d4205c ("audio: add "dbus" audio backend")
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20240214-dbus-v7-1-7eff29f04c34@daynix.com>
(cherry picked from commit d67611907590a1e6c998b7c5a5cb4394acf84329)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Mjt: fixup in audio/meson.build due to missing v8.0.0-2306-ga95a464777
 "audio: dbus requires pixman")