[PATCH] arm: imx8m: Fix pad DSE issue for i.MX8MM/MN/MP

[sbabic at denx.de]

> According to 8MM/MN/MP reference manual, their pad registers only have
> 4 valid DSE values. And DSE2 and DSE4 are different with current
> definitions in iomux-v3.h. Fix the issue to align with manual.
> Signed-off-by: Ye Li <ye.li at nxp.com>
> Acked-by: Peng Fan <peng.fan at nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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