PCI: cadence: Prefer of_device_get_match_data()

The cadence driver only needs the device data, not the whole struct
of_device_id. Use of_device_get_match_data() instead of of_match_device().
No functional change intended.

[bhelgaas: commit log]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Fan Fei <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>
Cc: Tom Joseph <[e-mail]>

drivers/pci/controller/cadence/pcie-cadence-plat.c

···
 {
 	const struct cdns_plat_pcie_of_data *data;
 	struct cdns_plat_pcie *cdns_plat_pcie;
-	const struct of_device_id *match;
 	struct device *dev = &pdev->dev;
 	struct pci_host_bridge *bridge;
 	struct cdns_pcie_ep *ep;
···
 	bool is_rc;
 	int ret;
 
-	match = of_match_device(cdns_plat_pcie_of_match, dev);
-	if (!match)
+	data = of_device_get_match_data(dev);
+	if (!data)
 		return -EINVAL;
 
-	data = (struct cdns_plat_pcie_of_data *)match->data;
 	is_rc = data->is_rc;
 
 	pr_debug(" Started %s with is_rc: %d\n", __func__, is_rc);