MAGETWO-82755: FR#6891_22 Add-to-cart checkbox still visible when = false #11610

 - Merge Pull Request #11610 from mrodespin/magento2:FR#6891_22
 - Merged commits:
   1. 70d7502

Author: Oleksii Korshenko

app/code/Magento/Catalog/view/frontend/templates/product/list/items.phtml

@@ -203,7 +203,7 @@ switch ($type = $block->getType()) {
                                 <?= $block->getReviewsSummaryHtml($_item, $templateType) ?>
                             <?php endif; ?>
 
-                            <?php if (!$_item->isComposite() && $_item->isSaleable() && $type == 'related'): ?>
+                            <?php if ($canItemsAddToCart && !$_item->isComposite() && $_item->isSaleable() && $type == 'related'): ?>
                                 <?php if (!$_item->getRequiredOptions()): ?>
                                     <div class="field choice related">
                                         <input type="checkbox" class="checkbox related" id="related-checkbox<?= /* @escapeNotVerified */ $_item->getId() ?>" name="related_products[]" value="<?= /* @escapeNotVerified */ $_item->getId() ?>" />