PCI: rcar: Drop pci_fixup_irqs()

Since, through struct pci_host_bridge.map/swizzle_irq hooks, IRQs are now
allocated in the pci_assign_irq() callback automatically, PCI host bridge
drivers can stop relying on pci_fixup_irqs() for IRQ allocation.

Drop pci_fixup_irqs() usage from PCI rcar host bridge driver.
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Simon Horman <horms@verge.net.au>

drivers/pci/host/pcie-rcar.c

@@ -465,6 +465,8 @@ static int rcar_pcie_enable(struct rcar_pcie *pcie)
 	bridge->sysdata = pcie;
 	bridge->busnr = pcie->root_bus_nr;
 	bridge->ops = &rcar_pcie_ops;
+	bridge->map_irq = of_irq_parse_and_map_pci;
+	bridge->swizzle_irq = pci_common_swizzle;
 	if (IS_ENABLED(CONFIG_PCI_MSI))
 		bridge->msi = &pcie->msi.chip;
 
@@ -476,8 +478,6 @@ static int rcar_pcie_enable(struct rcar_pcie *pcie)
 
 	bus = bridge->bus;
 
-	pci_fixup_irqs(pci_common_swizzle, of_irq_parse_and_map_pci);
-
 	pci_bus_size_bridges(bus);
 	pci_bus_assign_resources(bus);