intel/genxml: Fix some more fake booleans in genxml.

intel/genxml: Fix some more fake booleans in genxml.

None of these are actually booleans.  Tile Parameter is a tiling mode
enum.  Display pipes take plane numbers.  Predicate Enable has some
operations (and the default value of 6 was particular bogus).

Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>