drm/mediatek: Fix probe device leaks

Make sure to drop the reference taken to each component device during
probe on probe failure (e.g. probe deferral) and on driver unbind.

Fixes: 6ea6f8276725 ("drm/mediatek: Use correct device pointer to get CMDQ client register")
Cc: [e-mail] # 5.12
Cc: Chun-Kuang Hu <[e-mail]>
Signed-off-by: Johan Hovold <[e-mail]>
Reviewed-by: AngeloGioacchino Del Regno <[e-mail]>
Link: https://patchwork.kernel.org/project/dri-devel/patch/[e-mail]/
Signed-off-by: Chun-Kuang Hu <[e-mail]>

drivers/gpu/drm/mediatek/mtk_ddp_comp.c

···
 	return ret;
 }
 
+static void mtk_ddp_comp_put_device(void *_dev)
+{
+	struct device *dev = _dev;
+
+	put_device(dev);
+}
+
 static void mtk_ddp_comp_clk_put(void *_clk)
 {
 	struct clk *clk = _clk;
···
 		return -EPROBE_DEFER;
 	}
 	comp->dev = &comp_pdev->dev;
+
+	ret = devm_add_action_or_reset(dev, mtk_ddp_comp_put_device, comp->dev);
+	if (ret)
+		return ret;
 
 	if (type == MTK_DISP_AAL ||
 	    type == MTK_DISP_BLS ||