PCI: mediatek: Add missing MODULE_DEVICE_TABLE

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Link: https://lore.kernel.org/r/20210331085938.3115-1-linqiheng@huawei.com
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>

drivers/pci/controller/pcie-mediatek.c

@@ -1210,6 +1210,7 @@ static const struct of_device_id mtk_pcie_ids[] = {
 	{ .compatible = "mediatek,mt7629-pcie", .data = &mtk_pcie_soc_mt7629 },
 	{},
 };
+MODULE_DEVICE_TABLE(of, mtk_pcie_ids);
 
 static struct platform_driver mtk_pcie_driver = {
 	.probe = mtk_pcie_probe,