[ARM] 3/4: Remove asm/hardware.h from SA1100 io.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-sa1100/system.h b/include/asm-arm/arch-sa1100/system.h
index 6f52118..0f0612f 100644
--- a/include/asm-arm/arch-sa1100/system.h
+++ b/include/asm-arm/arch-sa1100/system.h
@@ -4,6 +4,7 @@
  * Copyright (c) 1999 Nicolas Pitre <nico@cam.org>
  */
 #include <linux/config.h>
+#include <asm/hardware.h>
 
 static inline void arch_idle(void)
 {