ARM: Fix Versatile&Integrator includes to behave in the same way as Realview

Realview doesn't include mach/platform.h in mach/hardware.h, so
make versatile behave in the same way.  Also, move the definition
of __io_address() into mach/hardware.h, just like Realview.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-integrator/include/mach/hardware.h b/arch/arm/mach-integrator/include/mach/hardware.h
index d795642..d44af72 100644
--- a/arch/arm/mach-integrator/include/mach/hardware.h
+++ b/arch/arm/mach-integrator/include/mach/hardware.h
@@ -23,7 +23,6 @@
 #define __ASM_ARCH_HARDWARE_H
 
 #include <asm/sizes.h>
-#include <mach/platform.h>
 
 /*
  * Where in virtual memory the IO devices (timers, system controllers
@@ -48,5 +47,7 @@
 #define PCIBIOS_MIN_IO		0x6000
 #define PCIBIOS_MIN_MEM 	0x00100000
 
+#define __io_address(n)		((void __iomem *)IO_ADDRESS(n))
+
 #endif