drm/sun4i: hdmi: Provide ddc symlink in sun4i hdmi connector sysfs directory

Use the ddc pointer provided by the generic connector.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/b5a8881b226a9af7d31eb6a57d7fe0fccdcb3a47.1564161140.git.andrzej.p@collabora.com

drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c

@@ -640,9 +640,10 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
 
 	drm_connector_helper_add(&hdmi->connector,
 				 &sun4i_hdmi_connector_helper_funcs);
-	ret = drm_connector_init(drm, &hdmi->connector,
+	ret = drm_connector_init_with_ddc(drm, &hdmi->connector,
 					  &sun4i_hdmi_connector_funcs,
-				 DRM_MODE_CONNECTOR_HDMIA);
+					  DRM_MODE_CONNECTOR_HDMIA,
+					  hdmi->ddc_i2c);
 	if (ret) {
 		dev_err(dev,
 			"Couldn't initialise the HDMI connector\n");