File _patchinfo of Package patchinfo.1699

<patchinfo incident="1699">
  <issue id="958306" tracker="bnc">spice-gtk: spice_audio_get_playback_volume_info_async() segfault</issue>
  <category>recommended</category>
  <rating>low</rating>
  <packager>cbosdonnat</packager>
  <description>
This update for spice-gtk fixes the following issues: 

- When the audio backend is not initialized correctly or there isn't audio in the
  VM, don't try to sync the volume.
</description>
  <summary>Recommended update for spice-gtk</summary>
</patchinfo>