add disabled prop (#11188)
add disabled prop (#11188)

First of all, thank you for your contribution! :-)

Please makes sure that these checkboxes are checked before submitting your PR, thank you!

* [x] Make sure that you propose PR to right branch: bugfix for `master`, feature for latest active branch `feature-x.x`.
* [x] Make sure that you follow antd's [code convention](https://github.com/ant-design/ant-design/wiki/Code-convention-for-antd).
* [x] Run `npm run lint` and fix those errors before submitting in order to keep consistent code style.
* [x] Rebase before creating a PR to keep commit history clear.
* [x] Add some descriptions and refer relative issues for you PR.

Extra checklist:

**if** *isBugFix* **:**

  * [x] Make sure that you add at least one unit test for the bug which you had fixed.

**elif** *isNewFeature* **:**

  * [ ] Update API docs for the component.
  * [ ] Update/Add demo to demonstrate new feature.
  * [ ] Update TypeScript definition for the component.
  * [ ] Add unit tests for the feature.

tslint检测时报错
类型“IntrinsicAttributes & IntrinsicClassAttributes<Tree> & Readonly<{ children?: ReactNode; }> & Read...”上不存在属性“disabled”。
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