MAGETWO-82748: Fix Notice: freePackageValue is undefined #11720

 - Merge Pull Request magento/magento2#11720 from amenk/magento2:patch-13
 - Merged commits:
   1. f642811

Author: orlangur

app/code/Magento/OfflineShipping/Model/Carrier/Tablerate.php

@@ -113,8 +113,9 @@ public function collectRates(RateRequest $request)
 
         // Free shipping by qty
         $freeQty = 0;
+        $freePackageValue = 0;
+
         if ($request->getAllItems()) {
-            $freePackageValue = 0;
             foreach ($request->getAllItems() as $item) {
                 if ($item->getProduct()->isVirtual() || $item->getParentItem()) {
                     continue;