ARM: pxa: add common header file for pxa3xx

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/include/mach/pxa300.h

 #ifndef __MACH_PXA300_H
 #define __MACH_PXA300_H
 
-#include <mach/hardware.h>
-#include <mach/pxa3xx-regs.h>
+#include <mach/pxa3xx.h>
 #include <mach/mfp-pxa300.h>
 
 #endif /* __MACH_PXA300_H */

arch/arm/mach-pxa/include/mach/pxa320.h

 #ifndef __MACH_PXA320_H
 #define __MACH_PXA320_H
 
-#include <mach/hardware.h>
-#include <mach/pxa3xx-regs.h>
+#include <mach/pxa3xx.h>
 #include <mach/mfp-pxa320.h>
 
 #endif /* __MACH_PXA320_H */

arch/arm/mach-pxa/include/mach/pxa3xx.h

+#ifndef __MACH_PXA3XX_H	
+#define __MACH_PXA3XX_H
+
+#include <mach/hardware.h>
+#include <mach/pxa3xx-regs.h>
+
+#endif /* __MACH_PXA3XX_H */

arch/arm/mach-pxa/include/mach/pxa930.h

 #ifndef __MACH_PXA930_H
 #define __MACH_PXA930_H
 
-#include <mach/hardware.h>
-#include <mach/pxa3xx-regs.h>
+#include <mach/pxa3xx.h>
 #include <mach/mfp-pxa930.h>
 
 #endif /* __MACH_PXA930_H */