thermal/drivers/imx_sc: Add missing of_node_put for loop iteration

Early exits from for_each_available_child_of_node() should decrement the
node reference counter. Reported by Coccinelle:

drivers/thermal/imx_sc_thermal.c:93:1-33: WARNING:
Function "for_each_available_child_of_node" should have of_node_put() before return around line 97.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
Reviewed-by: Jacky Bai <[e-mail]>
Signed-off-by: Daniel Lezcano <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/thermal/imx_sc_thermal.c

···
 	for_each_available_child_of_node(np, child) {
 		sensor = devm_kzalloc(&pdev->dev, sizeof(*sensor), GFP_KERNEL);
 		if (!sensor) {
+			of_node_put(child);
 			of_node_put(sensor_np);
 			return -ENOMEM;
 		}
···
 			dev_err(&pdev->dev,
 				"failed to get valid sensor resource id: %d\n",
 				ret);
+			of_node_put(child);
 			break;
 		}
 
···
 		if (IS_ERR(sensor->tzd)) {
 			dev_err(&pdev->dev, "failed to register thermal zone\n");
 			ret = PTR_ERR(sensor->tzd);
+			of_node_put(child);
 			break;
 		}