[U-Boot] [PATCH v4 02/13] dm: Fix documentation entry as there is

[sbabic at denx.de]

> There is no UCLASS_CLOCK uclass defined. Instead we do use the UCLASS_CLK.
> Signed-off-by: Lukasz Majewski <lukma at denx.de>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> Reviewed-by: Peng Fan <peng.fan at nxp.com>

Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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