Upload: fix missing progress, fixed #1013

packages/upload/src/cover.vue

@@ -33,10 +33,13 @@
 </template>
 <script>
   import Locale from 'element-ui/src/mixins/locale';
+  import ElProgress from 'element-ui/packages/progress';
 
   export default {
     mixins: [Locale],
 
+    components: { ElProgress },
+
     props: {
       image: {},
       onPreview: {

packages/upload/src/upload-list.vue

@@ -24,9 +24,13 @@
 </template>
 <script>
   import Locale from 'element-ui/src/mixins/locale';
+  import ElProgress from 'element-ui/packages/progress';
 
   export default {
     mixins: [Locale],
+
+    components: { ElProgress },
+
     props: {
       files: {
         type: Array,