[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-rpc/system.h b/include/asm-arm/arch-rpc/system.h
index ca3277d..729c2ae 100644
--- a/include/asm-arm/arch-rpc/system.h
+++ b/include/asm-arm/arch-rpc/system.h
@@ -7,7 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <asm/arch/hardware.h>
+#include <asm/hardware.h>
 #include <asm/hardware/iomd.h>
 #include <asm/io.h>