libvmi: mark broken

In file included from ./driver/xen/xen_private.h:42,
  error: unknown type name 'xc_dominfo_t'; did you mean 'xc_meminfo_t'?

PR #328873 reverts this commit and updates LibVMI.

Signed-off-by: Fernando Rodrigues <alpha@sigmasquadron.net>

pkgs/development/libraries/libvmi/default.nix

@@ -45,5 +45,6 @@ stdenv.mkDerivation rec {
     license = with licenses; [ gpl3 lgpl3 ];
     platforms = platforms.linux;
     maintainers = [ ];
+    broken = true;
   };
 }