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

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-at91rm9200/system.h b/include/asm-arm/arch-at91rm9200/system.h
index 945e665..8a2ff47 100644
--- a/include/asm-arm/arch-at91rm9200/system.h
+++ b/include/asm-arm/arch-at91rm9200/system.h
@@ -21,7 +21,7 @@
 #ifndef __ASM_ARCH_SYSTEM_H
 #define __ASM_ARCH_SYSTEM_H
 
-#include <asm/arch/hardware.h>
+#include <asm/hardware.h>
 
 static inline void arch_idle(void)
 {