[PATCH] board: gateworks: venice: assume emmc device for USB boot

[sbabic at denx.de]

> When booting from USB (SDP) setup firmware-update environment
> for emmc device.
> Signed-off-by: Tim Harvey <tharvey at gateworks.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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