[media] media: mtk-mdp: NULL-terminate mtk_mdp_comp_dt_ids

The mtk_mdp_comp_dt_ids[] array should be NULL-terminated; add therefore an
empty entry in the end.

Fixes: c8eb2d7e8202fd9c ("[media] media: Add Mediatek MDP Driver")

Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/platform/mtk-mdp/mtk_mdp_core.c

@@ -50,7 +50,8 @@ static const struct of_device_id mtk_mdp_comp_dt_ids[] = {
 	}, {
 		.compatible = "mediatek,mt8173-mdp-wrot",
 		.data = (void *)MTK_MDP_WROT
-	}
+	},
+	{ },
 };
 
 static const struct of_device_id mtk_mdp_of_ids[] = {