pinctrl: ti: fix error return code of ti_iodelay_dt_node_to_map()

when devm_kcalloc fails, use -ENOMEM instead of -EINVAL,
and consistent with other devm_kcalloc return values.

Signed-off-by: Junlin Yang <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/ti/pinctrl-ti-iodelay.c

···
 	}
 
 	pins = devm_kcalloc(iod->dev, rows, sizeof(*pins), GFP_KERNEL);
-	if (!pins)
+	if (!pins) {
+		error = -ENOMEM;
 		goto free_group;
+	}
 
 	cfg = devm_kcalloc(iod->dev, rows, sizeof(*cfg), GFP_KERNEL);
 	if (!cfg) {