PCI: Fix INTC comment typo for pci_swizzle_interrupt_pin()

The INTx pin should be INIT[ABCD].  Fix the typo "3=INTC".
Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

drivers/pci/pci.c

@@ -2421,7 +2421,7 @@ bool pci_acs_path_enabled(struct pci_dev *start,
 /**
  * pci_swizzle_interrupt_pin - swizzle INTx for device behind bridge
  * @dev: the PCI device
- * @pin: the INTx pin (1=INTA, 2=INTB, 3=INTD, 4=INTD)
+ * @pin: the INTx pin (1=INTA, 2=INTB, 3=INTC, 4=INTD)
  *
  * Perform INTx swizzling for a device behind one level of bridge.  This is
  * required by section 9.1 of the PCI-to-PCI bridge specification for devices