[PATCH V4 2/3] arm64: dts: imx8mn: Enable HS400-ES

[Shawn Guo]

On Sun, Apr 10, 2022 at 02:35:42PM -0500, Adam Ford wrote:
> The SDHC controller in the imx8mn has the same controller
> as the imx8mm which supports HS400-ES. Change the compatible
> fallback to imx8mm to enable it, but keep the imx7d-usdhc
> to prevent breaking backwards compatibility.
> 
> Signed-off-by: Adam Ford <aford173 at gmail.com>

Applied #2 and #3, thanks!