[PATCH 18/23] ddr: imx: Update the ddr init flow on imx8ulp

[sbabic at denx.de]

> From: Jacky Bai <ping.bai at nxp.com>
> Update the ddr init flow to support LPDDR3 and PLL bypass mode.
> Signed-off-by: Jacky Bai <ping.bai at nxp.com>
> Reviewed-by: Ye Li <ye.li at nxp.com>
Applied to u-boot-imx, -next, thanks !

Best regards,
Stefano Babic

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