intel/genxml: Fix a few invalid field widths

intel/genxml: Fix a few invalid field widths

A couple of typos found by inspecting field.end - field.start, revealed
a few wide integers declared as bool and some that ended before they
started.

Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>