ARM: SAMSUNG: Move pm-core.h to machine directory

Move the pm-core.h to the machine include directory in the process of
eliminating the plat-s3c64xx.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

arch/arm/plat-s3c24xx/include/plat/pm-core.h → arch/arm/mach-s3c2410/include/mach/pm-core.h

-/* linux/arch/arm/plat-s3c24xx/include/plat/pll.h
+/* linux/arch/arm/mach-s3c2410/include/pm-core.h
  *
  * Copyright 2008 Simtec Electronics
  *      Ben Dooks <ben@simtec.co.uk>

arch/arm/plat-s3c64xx/include/plat/pm-core.h → arch/arm/mach-s3c64xx/include/mach/pm-core.h

-/* linux/arch/arm/plat-s3c64xx/include/plat/pm-core.h
+/* linux/arch/arm/mach-s3c64xx/include/mach/pm-core.h
  *
  * Copyright 2008 Openmoko, Inc.
  * Copyright 2008 Simtec Electronics

arch/arm/plat-s3c/pm.c

@@ -29,7 +29,7 @@
 #include <asm/irq.h>
 
 #include <plat/pm.h>
-#include <plat/pm-core.h>
+#include <mach/pm-core.h>
 
 /* for external use */