drm/i915/fbc: Reoder CFB max height platform checks

Rearrange the max CFB max height platform into the
more common "new first, old last" order.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240705145254.3355-11-ville.syrjala@linux.intel.com


Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>