[PATCH v5] imx8mm-evk: Generate a single bootable flash.bin again

[sbabic at denx.de]

> After the conversion to binman in commit 8996e6b7c6a1 ("imx8mm_evk: switch
> to use binman to pack images"), it is necessary to flash both flash.bin and
> u-boot.itb to get a bootable system. Prior to this commit, only flash.bin
> was needed.
> Such new requirement breaks existing distro mechanisms to generate the
> final binary because the extra u-boot.itb is now required.
> Generate a final flash.bin that can be used again as a single
> bootable binary to keep the original behavior.
> After this change the SPL binary is called spl.bin, which is a more
> descriptive name for its purpose, and can still be used standalone
> (for example, for secure boot purposes).
> Also update imx8mm_evk.rst to remove the u-boot.itb copy step.
> Signed-off-by: Fabio Estevam <festevam at denx.de>
> Reviewed-by: Frieder Schrempf <frieder.schrempf at kontron.de>
> Reviewed-by: Heiko Schocher <hs at denx.de>
> Reviewed-by: Marcel Ziswiler <marcel.ziswiler at toradex.com>
> Reviewed-by: Heiko Thiery <heiko.thiery at gmail.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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