[PATCH 2/2] riscv: dts: sophgo: cv180x: Fix internal ephy node name

[葉宸佑]

> Please send this with the same thread of PATCH 1. Otherwise, LGTM
>
> Reviewed-by: Inochi Amaoto <inochiama at gmail.com>

Understood -- 2/2 went out as its own thread by mistake. It will be
threaded properly in v2, and I will carry your Reviewed-by over.

Thanks,
Chen-Yu