[PATCH 2/5] Revert "imx: Introduce CONFIG_SPL_FORCE_MMC_BOOT to force MMC boot on falcon mode"

[sbabic at denx.de]

> The CONFIG_SPL_FORCE_MMC_BOOT config flag is not needed as its behavior
> is the correct one in all cases;  using spl_boot_device() instead of the
> boot_device parameter will lead to inconsistency issues, for example,
> when a board_boot_order() is defined.  In fact, this is the reason the
> parameter was introduced in the first place, in commit 2b1cdafa9fdd
> ("common: Pass the boot device into spl_boot_mode()").
> This reverts commit 772b55723bcbe8ebe84f579d9cdc831d8e18579d.
> Link: https://lists.denx.de/pipermail/u-boot/2020-April/405979.html
> Signed-off-by: Harald Seiler <hws at denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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