PCI: rockchip-host: Rename rockchip_pcie_legacy_int_handler()

Rename the function rockchip_pcie_legacy_int_handler() of the rockchip
host driver to rockchip_pcie_intx_handler() to match the PCI_IRQ_INTX
macro name used to control this function execution, and to match the
term used in the PCI specifications.

Link: https://lore.kernel.org/r/20231122060406.14695-16-dlemoal@kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

Author: damien-lemoal

drivers/pci/controller/pcie-rockchip-host.c

@@ -505,7 +505,7 @@ static irqreturn_t rockchip_pcie_client_irq_handler(int irq, void *arg)
 	return IRQ_HANDLED;
 }
 
-static void rockchip_pcie_legacy_int_handler(struct irq_desc *desc)
+static void rockchip_pcie_intx_handler(struct irq_desc *desc)
 {
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	struct rockchip_pcie *rockchip = irq_desc_get_handler_data(desc);
@@ -553,7 +553,7 @@ static int rockchip_pcie_setup_irq(struct rockchip_pcie *rockchip)
 		return irq;
 
 	irq_set_chained_handler_and_data(irq,
-					 rockchip_pcie_legacy_int_handler,
+					 rockchip_pcie_intx_handler,
 					 rockchip);
 
 	irq = platform_get_irq_byname(pdev, "client");