pinctrl: imx: Support i.MX8 SoCs pinctrl driver built as module

Export necessary APIs to support i.MX8 SoCs pinctrl driver to be
built as module.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/1592979844-18833-2-git-send-email-Anson.Huang@nxp.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/freescale/pinctrl-imx.c

@@ -878,6 +878,7 @@ int imx_pinctrl_probe(struct platform_device *pdev,
 
 	return pinctrl_enable(ipctl->pctl);
 }
+EXPORT_SYMBOL_GPL(imx_pinctrl_probe);
 
 static int __maybe_unused imx_pinctrl_suspend(struct device *dev)
 {
@@ -897,3 +898,4 @@ const struct dev_pm_ops imx_pinctrl_pm_ops = {
 	SET_LATE_SYSTEM_SLEEP_PM_OPS(imx_pinctrl_suspend,
 					imx_pinctrl_resume)
 };
+EXPORT_SYMBOL_GPL(imx_pinctrl_pm_ops);