[PATCH v2 5/6] board: phytec: common: phytec_som_detection: Add helper for PCB revision

[sbabic at denx.de]

> Add helper function to read out the PCB revision of a PHYTEC SoM.
> Signed-off-by: Teresa Remmet <t.remmet at phytec.de>
> Reviewed-by: Yannic Moog <y.moog at phytec.de>
> Tested-by: Yannic Moog <y.moog at phytec.de>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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