drm/sun4i: tv: Rename error label

The other error labels in sun4i_tv_bind() are named after the task they
perform (err_disable_clk to call clk_disable_unprepare for example).

However, the err_cleanup_connector is named after the calling site
(drm_connector_init failing) and will actually cleanup the encoder. Let's
rename it to err_cleanup_encoder to be consistent.
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728-rpi-analog-tv-properties-v2-39-459522d653a7@cerno.tech

drivers/gpu/drm/sun4i/sun4i_tv.c

@@ -585,7 +585,7 @@ static int sun4i_tv_bind(struct device *dev, struct device *master,
 	if (ret) {
 		dev_err(dev,
 			"Couldn't initialise the Composite connector\n");
-		goto err_cleanup_connector;
+		goto err_cleanup_encoder;
 	}
 	tv->connector.interlace_allowed = true;
 
@@ -593,7 +593,7 @@ static int sun4i_tv_bind(struct device *dev, struct device *master,
 
 	return 0;
 
-err_cleanup_connector:
+err_cleanup_encoder:
 	drm_encoder_cleanup(&tv->encoder);
 err_disable_clk:
 	clk_disable_unprepare(tv->clk);