[PATCH 1/2] gpio: mxc_gpio: change gpio index for i.MX8

[sbabic at denx.de]

> Since the i.MX8 GPIO banks are indexed from 0 not 1 on other i.MX
> platforms, so we have to adjust the index accordingly.
> Signed-off-by: Adrian Alonso <adrian.alonso at nxp.com>
> Signed-off-by: Ye Li <ye.li at nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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