media: rockchip: rga: Fix probe rga_parse_dt bugs

rga_parse_dt is missing a error return, so if some of the resources
return DEFER_PROBE, probe will succeed without these resources.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Co-developed-by: Jarrah Gosbell <kernel@undef.tools>
Signed-off-by: Jarrah Gosbell <kernel@undef.tools>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/rockchip/rga/rga.c

@@ -816,7 +816,7 @@ static int rga_probe(struct platform_device *pdev)
 
 	ret = rga_parse_dt(rga);
 	if (ret)
-		dev_err(&pdev->dev, "Unable to parse OF data\n");
+		return dev_err_probe(&pdev->dev, ret, "Unable to parse OF data\n");
 
 	pm_runtime_enable(rga->dev);