prevent dispatch form event

when component import an Input, prevent dispatch event from Input to
Form

src/components/date-picker/panel/time.vue

@@ -36,6 +36,7 @@
     const timePrefixCls = 'ivu-time-picker';
 
     export default {
+        name: 'TimePicker',
         mixins: [ Mixin, Locale ],
         components: { TimeSpinner, Confirm },
         data () {