[ARM] Include asm/hardware.h instead of asm/arch/hardware.h

Rationalise hardware.h include.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-imx/timex.h b/include/asm-arm/arch-imx/timex.h
index d65ab3c..8c91674 100644
--- a/include/asm-arm/arch-imx/timex.h
+++ b/include/asm-arm/arch-imx/timex.h
@@ -21,7 +21,7 @@
 #ifndef __ASM_ARCH_TIMEX_H
 #define __ASM_ARCH_TIMEX_H
 
-#include <asm/arch/hardware.h>
+#include <asm/hardware.h>
 #define CLOCK_TICK_RATE		(CLK32)
 
 #endif