dropdown添加minOverlayWidthMatchTrigger属性 (#954)

* Update getDropdownProps.js

dropdown组件增加minOverlayWidthMatchTrigger属性

* dropdown组件增加minOverlayWidthMatchTrigger属性

Author: wapznw

components/dropdown/getDropdownProps.js

@@ -21,4 +21,5 @@ export default () => ({
   forceRender: PropTypes.bool,
   mouseEnterDelay: PropTypes.number,
   mouseLeaveDelay: PropTypes.number,
+  minOverlayWidthMatchTrigger: PropTypes.bool,
 });