pinctrl: pistachio: Use devm_pinctrl_register() for pinctrl registration

Use devm_pinctrl_register() for pin control registration.

Signed-off-by: Laxman Dewangan <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/pinctrl-pistachio.c

···
 	pistachio_pinctrl_desc.pins = pctl->pins;
 	pistachio_pinctrl_desc.npins = pctl->npins;
 
-	pctl->pctldev = pinctrl_register(&pistachio_pinctrl_desc, &pdev->dev,
-					 pctl);
+	pctl->pctldev = devm_pinctrl_register(&pdev->dev, &pistachio_pinctrl_desc,
+					      pctl);
 	if (IS_ERR(pctl->pctldev)) {
 		dev_err(&pdev->dev, "Failed to register pinctrl device\n");
 		return PTR_ERR(pctl->pctldev);