drm: Include the connector name in the output_poll_execute() debug message

Always useful to know just which connector was polled and had its
status updated.

Signed-off-by: Chris Wilson <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/drm_crtc_helper.c

···
 			continue;
 
 		connector->status = connector->funcs->detect(connector, false);
-		DRM_DEBUG_KMS("connector status updated to %d\n", connector->status);
+		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+			      connector->base.id,
+			      drm_get_connector_name(connector),
+			      old_status, connector->status);
 		if (old_status != connector->status)
 			changed = true;
 	}