drm/xe/xe_query: Use separate iterator while filling GT list

drm/xe/xe_query: Use separate iterator while filling GT list

[ Upstream commit d4eb4a010262ea7801e576d1033b355910f2f7d4 ]

The 'id' value updated by for_each_gt() is the uapi GT ID of the GTs
being iterated over, and may skip over values if a GT is not present on
the device.  Use a separate iterator for GT list array assignments to
ensure that the array will be filled properly on future platforms where
index in the GT query list may not match the uapi ID.

v2:
 - Include the missing increment of the iterator.  (Jonathan)

Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://lore.kernel.org/r/20250701201320.2514369-16-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>