bus: integrator-lm: fix OF node leak in probe()

Driver code is leaking OF node reference from of_find_matching_node() in
probe().

Fixes: ccea5e8 ("bus: Add driver for Integrator/AP logic modules")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://lore.kernel.org/20240826054934.10724-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: krzk

drivers/bus/arm-integrator-lm.c

@@ -85,6 +85,7 @@ static int integrator_ap_lm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 	map = syscon_node_to_regmap(syscon);
+	of_node_put(syscon);
 	if (IS_ERR(map)) {
 		dev_err(dev,
 			"could not find Integrator/AP system controller\n");