drm/i915: Correct for_each_old_global_obj_in_state() arguments

for_each_old_global_obj_in_state() gives us the old state, not the
new state. Correct the name of the macro argument.

Note that while the argument was misnamed the macro did work
correctly regardless.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208151720.7866-2-ville.syrjala@linux.intel.com


Reviewed-by: Jani Nikula <jani.nikula@intel.com>