fix(ngAriaSpec) wrong input closing tag

[m-amr]

Note: for support questions, please use one of these channels: https://github.com/angular/angular.js/blob/master/CONTRIBUTING.md#question. This repository's issues are reserved for feature requests and bug reports.

• Do you want to request a feature or report a bug?

bug

• What is the current behavior?
  input tag is closed with div tag

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem via
  https://plnkr.co or similar (you can use this template as a starting point: http://plnkr.co/edit/tpl:yBpEi4).

• What is the expected behavior?
  remove wrong closed div tag

  <input type="checkbox" ng-model="val"/>
  

• What is the motivation / use case for changing the behavior?

• Which version of Angular, and which browser and OS does this issue affect? Did this work in previous
  versions of Angular? Please also test with the latest stable and snapshot versions.

• Other information (e.g. detailed explanation, stacktraces, related issues, suggestions how to fix)