meson-mx-socinfo: Fix refcount leak in meson_mx_socinfo_init

of_find_matching_node() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: 5e68c0fc8df8 ("soc: amlogic: Add Meson6/Meson8/Meson8b/Meson8m2 SoC Information driver")
Signed-off-by: Miaoqian Lin <[e-mail]>
Reviewed-by: Martin Blumenstingl <[e-mail]>
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/soc/amlogic/meson-mx-socinfo.c

···
 	np = of_find_matching_node(NULL, meson_mx_socinfo_analog_top_ids);
 	if (np) {
 		analog_top_regmap = syscon_node_to_regmap(np);
+		of_node_put(np);
 		if (IS_ERR(analog_top_regmap))
 			return PTR_ERR(analog_top_regmap);