[PATCH] pinctrl: imx: fix assigning groups names

[Fabio Estevam]

Hi Rafał,

On Mon, Dec 27, 2021 at 9:23 AM Rafał Miłecki <zajec5 at gmail.com> wrote:
>
> From: Rafał Miłecki <rafal at milecki.pl>
>
> This fixes regression caused by incorrect array indexing.
>
> Reported-by: Fabio Estevam <festevam at gmail.com>
> Fixes: 02f117134952 ("pinctrl: imx: prepare for making "group_names" in "function_desc" const")
> Signed-off-by: Rafał Miłecki <rafal at milecki.pl>

This fixes the "invalid group" errors I was seeing on an imx7s-warp
board, thanks:

Tested-by: Fabio Estevam <festevam at gmail.com>