ARM: 6664/1: AT91: Use macros for gpio_to_irq/irq_to_gpio

Replace the static inline functions for gpio_to_irq/irq_to_gpio so that
they can be used in static initialisers.
Signed-off-by: NRyan Mallon <ryan@bluewatersys.com>
Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-at91/include/mach/gpio.h

@@ -220,15 +220,8 @@ extern void at91_gpio_resume(void);
 #define gpio_set_value	__gpio_set_value
 #define gpio_cansleep	__gpio_cansleep
 
-static inline int gpio_to_irq(unsigned gpio)
-{
-	return gpio;
-}
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	return irq;
-}
+#define gpio_to_irq(gpio) (gpio)
+#define irq_to_gpio(irq)  (irq)
 
 #endif	/* __ASSEMBLY__ */