[PATCH] MAINTAINERS: update Tzung-Bi's email address

[Chen-Yu Tsai]

On Mon, Oct 24, 2022 at 7:06 PM Tzung-Bi Shih <tzungbi at kernel.org> wrote:
>
> Use kernel.org account instead.
>
> Signed-off-by: Tzung-Bi Shih <tzungbi at kernel.org>

You could also update .mailmap?