[gnome-music] Hard-code freeze break request

[Vadim Rutkovsky <vrutkovs redhat com>]

Howdy,

GNOME Music's search is not very good handling tracks without
artist/album set in search [1], which is usually a majority of all music
tracks. Tested the fix for the patch locally.

The fix is trivial, similar code is present in other parts of the app.
It also doesn't affect the UI and strings.

[1] https://bugzilla.gnome.org/show_bug.cgi?id=726721

-- 
Thanks,
  Vadim