[PATCH v2] ARM: imx: Deduplicate i.MX8M SNVS LPGPR unlock

[sbabic at denx.de]

> Pull this LPGPR unlock into common code, since it is used in multiple
> systems already.
> Signed-off-by: Marek Vasut <marex at denx.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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