media: mediatek: mdp3: replace return by goto for proper unwind

An error was returned at one point without going through the
goto label for proper unwinding.

This fixes a smatch warning:

mtk-mdp3-comp.c:1005 mdp_comp_config() warn: missing unwind goto?
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Moudy Ho <moudy.ho@mediatek.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/mdp3/mtk-mdp3-comp.c

@@ -1002,7 +1002,8 @@ int mdp_comp_config(struct mdp_dev *mdp)
 		if (!pdev) {
 			dev_warn(dev, "can't find platform device of node:%s\n",
 				 node->name);
-			return -ENODEV;
+			ret = -ENODEV;
+			goto err_init_comps;
 		}
 
 		comp->comp_dev = &pdev->dev;