[ARM] Include asm/hardware.h not asm/arch/hardware.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91rm9200/gpio.c b/arch/arm/mach-at91rm9200/gpio.c
index 3430ea0..83c3474 100644
--- a/arch/arm/mach-at91rm9200/gpio.c
+++ b/arch/arm/mach-at91rm9200/gpio.c
@@ -16,7 +16,7 @@
 
 #include <asm/io.h>
 #include <asm/mach/irq.h>
-#include <asm/arch/hardware.h>
+#include <asm/hardware.h>
 #include <asm/arch/gpio.h>
 
 static const u32 pio_controller_offset[4] = {