drm/xe/uapi: Define topology types as indexes rather than masks

The topology type is an index (not a mask) so define the values
like other indexes instead of using powers of 2. This is also
to make clear that the next type can use value 3. This commit
does not change the existing values so it does not break
compatibility.

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Link: https://lore.kernel.org/intel-xe/20240327232317.GI718896@mdroper-desk1.amr.corp.intel.com/


Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240328140243.7-1-francois.dugast@intel.com


Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>