[PATCH v2] configs: imx8m: Enable CONFIG_ARMV8_CRYPTO support

[sbabic at denx.de]

> This enables armv8 crypto extension usage for SHA1/SHA256.
> Which speed up sha1/sha256 operations, about 10x faster with
> a imx8mm evk for a 20MiB kernel hash verification (12ms vs 165ms).
> Signed-off-by: Loic Poulain <loic.poulain at linaro.org>
> Reviewed-by: Fabio Estevam <festevam at denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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