[PATCH 4/5] spl: sdp: Add a callback to clean up USB driver

[sbabic at denx.de]

> From: Ye Li <ye.li at nxp.com>
> Because SDP directly jumps to next level boot image, we'd better
> clean up the USB driver before it. Implement a weak callback function,
> that spl sdp can use it to clean up USB driver.
> Signed-off-by: Ye Li <ye.li at nxp.com>
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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