Accepting request 952936 from home:iznogood:branches:multimedia:libs

- As we now have gstreamer dependencies in place, pass
  gstreamer=enabled to meson, enable the features.

OBS-URL: https://build.opensuse.org/request/show/952936
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/pulseaudio?expand=0&rev=257

pulseaudio.spec

@@ -355,6 +355,7 @@ System user for PulseAudio
       --auto-features=auto \
       -Dhal-compat=false   \
       -Dgsettings=enabled  \
+      -Dgstreamer=enabled  \
       -Ddoxygen=false      \
       -Dsystem_user=pulse  \
       -Dsystem_group=pulse \