PCI: alpha: use generic pci_swizzle_interrupt_pin()

Use the generic pci_swizzle_interrupt_pin() instead of arch-specific code.

Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index a4555f4..d232e42 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -425,7 +425,7 @@
 				slot = PCI_SLOT(dev->devfn) + 11;
 				break;
 			}
-			pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ;
+			pin = pci_swizzle_interrupt_pin(dev, pin);
 
 			/* Move up the chain of bridges.  */
 			dev = dev->bus->self;