drm/meson: encoder_cvbs: Fix refcount leak in meson_encoder_cvbs_init

of_graph_get_remote_node() returns remote device nodepointer with
refcount incremented, we should use of_node_put() on it when done.
Add missing of_node_put() to avoid refcount leak.

Fixes: 318ba02c ("drm/meson: encoder_cvbs: switch to bridge with ATTACH_NO_CONNECTOR")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220601033927.47814-2-linmq006@gmail.com

drivers/gpu/drm/meson/meson_encoder_cvbs.c

@@ -238,6 +238,7 @@ int meson_encoder_cvbs_init(struct meson_drm *priv)
 	}
 
 	meson_encoder_cvbs->next_bridge = of_drm_find_bridge(remote);
+	of_node_put(remote);
 	if (!meson_encoder_cvbs->next_bridge) {
 		dev_err(priv->dev, "Failed to find CVBS Connector bridge\n");
 		return -EPROBE_DEFER;