[PATCH] Fix typo in i386 PCI header

I made a typo the other weeks while renaming the interfaces for you,
oops.  Please apply, thanks.

include/asm-i386/pci.h

@@ -118,7 +118,7 @@ static inline void pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
 #define pci_unmap_addr(PTR, ADDR_NAME)		(0)
-#define pci_unmap_addr_SET(PTR, ADDR_NAME, VAL)	do { } while (0)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)	do { } while (0)
 #define pci_unmap_len(PTR, LEN_NAME)		(0)
 #define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)