Merge pull request #229734 from wegank/phonon-platforms

libsForQt5.phonon: unbreak on darwin

pkgs/development/libraries/phonon/default.nix

···
     license = lib.licenses.lgpl2;
     platforms = lib.platforms.unix;
     maintainers = with lib.maintainers; [ ttuegel ];
-    broken = stdenv.isDarwin;
   };
 
   src = fetchurl {