drm/xe: Use for_each_remote_tile rather than manual check

drm/xe: Use for_each_remote_tile rather than manual check

Replace for_each_tile plus a check against primary tile with
for_each_remote_tile in tiles_fini. The latter macro does this for us.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240816040208.62695-1-matthew.brost@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>