make pci_config_* inline

Small thinko...

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

include/pci.h

diff --git a/include/pci.h b/include/pci.h
index e6b445c..c12a784 100644
--- a/include/pci.h
+++ b/include/pci.h
@@ -9,31 +9,31 @@
 	outl(0xcfc, val);
 }
 
-void pci_config_writew(uint16_t bdf, uint32_t addr, uint16_t val)
+static inline void pci_config_writew(uint16_t bdf, uint32_t addr, uint16_t val)
 {
 	outl(0xcf8, 0x80000000 | (bdf << 8) | (addr & 0xfc));
 	outw(0xcfc | (addr & 2), val);
 }
 
-void pci_config_writeb(uint16_t bdf, uint32_t addr, uint8_t val)
+static inline void pci_config_writeb(uint16_t bdf, uint32_t addr, uint8_t val)
 {
 	outl(0xcf8, 0x80000000 | (bdf << 8) | (addr & 0xfc));
 	outb(0xcfc | (addr & 3), val);
 }
 
-uint32_t pci_config_readl(uint16_t bdf, uint32_t addr)
+static inline uint32_t pci_config_readl(uint16_t bdf, uint32_t addr)
 {
 	outl(0xcf8, 0x80000000 | (bdf << 8) | (addr & 0xfc));
 	return inl(0xcfc);
 }
 
-uint16_t pci_config_readw(uint16_t bdf, uint32_t addr)
+static inline uint16_t pci_config_readw(uint16_t bdf, uint32_t addr)
 {
 	outl(0xcf8, 0x80000000 | (bdf << 8) | (addr & 0xfc));
 	return inw(0xcfc | (addr & 2));
 }
 
-uint8_t pci_config_readb(uint16_t bdf, uint32_t addr)
+static inline uint8_t pci_config_readb(uint16_t bdf, uint32_t addr)
 {
 	outl(0xcf8, 0x80000000 | (bdf << 8) | (addr & 0xfc));
 	return inb(0xcfc | (addr & 3));