drm: rockchip: dw-hdmi: add RK3568 support

Signed-off-by: Shunqing Chen <csq@rock-chips.com>
Change-Id: I24ec9a60d915b71281362b0b2d67fb8c288cdd14

drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

@@ -1358,6 +1358,9 @@ static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
 	{ .compatible = "rockchip,rk3399-dw-hdmi",
 	  .data = &rk3399_hdmi_drv_data
 	},
+	{ .compatible = "rockchip,rk3568-dw-hdmi",
+	  .data = &rk3368_hdmi_drv_data	//same as rk3368
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, dw_hdmi_rockchip_dt_ids);