[U-Boot] [U-Boot, RESEND, v3, 4/8] arm: imx7s-warp: Convert to DM MMC initialization

[sbabic at denx.de]

> Converts from fixed initialization of MMC to DM initialization of MMC.
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue at linaro.org>
> Cc: Albert Aribaud <albert.u.boot at aribaud.net>
> Cc: Peng Fan <peng.fan at nxp.com>
> Cc: Fabio Estevam <fabio.estevam at nxp.com>
> Cc: Stefano Babic <sbabic at denx.de>

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

Best regards,
Stefano Babic

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