Add triage permissions for @JhanBoChao-Realtek

### Full Name

Jhan Bo Chao

### GitHub Username

@JhanBoChao-Realtek 

### Organization

Realtek

### Supporting Documents

@JhanBoChao-Realtek has contributed the following [PRs](https://github.com/zephyrproject-rtos/zephyr/issues?q=state%3Aclosed%20label%3A%22platform%3A%20Realtek%20EC%22%20author%3AJhanBoChao-Realtek)