[PATCH V2 3/3] pinctrl: imx: Support building i.MX pinctrl core driver as module

[Aisheng Dong]

> From: Anson Huang <Anson.Huang at nxp.com>
> Sent: Monday, September 7, 2020 8:33 PM
> 
> Change PINCTRL_IMX to tristate to support loadable module build.
> 
> And i.MX common pinctrl driver should depend on CONFIG_OF to make sure no
> build error when i.MX common pinctrl driver is enabled for different
> architectures without CONFIG_OF.
> 
> Also add module author, description and license.
> 
> Signed-off-by: Anson Huang <Anson.Huang at nxp.com>

Reviewed-by: Dong Aisheng <aisheng.dong at nxp.com>

Regards
Aisheng