regulator: qcom-labibb: Fix missing of_node_put() in qcom_labibb_regulator_probe()

The reg_node needs to be released through of_node_put() in the error
handling path when of_irq_get_byname() failed.

Fixes: 390af53e ("regulator: qcom-labibb: Implement short-circuit and over-current IRQs")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221203062109.115043-1-yuancan@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/qcom-labibb-regulator.c

@@ -822,6 +822,7 @@ static int qcom_labibb_regulator_probe(struct platform_device *pdev)
 			if (irq == 0)
 				irq = -EINVAL;
 
+			of_node_put(reg_node);
 			return dev_err_probe(vreg->dev, irq,
 					     "Short-circuit irq not found.\n");
 		}