[ARM] S3C24XX: Move files out of include/asm-arm/plat-s3c*

First move of items out of include/asm-arm/plat-s3c* to their
new homes under arch/arm/plat-s3c/include/plat and
arch/arm/plat-s3c24xx/include/plat directories.

Note, we have to create a dummy arch/arm/plat-s3c/Makefile to
allow us to add arch/arm/plat-s3c/include/plat to the path.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c24xx/pwm-clock.c b/arch/arm/plat-s3c24xx/pwm-clock.c
index 306cc9c..245270b 100644
--- a/arch/arm/plat-s3c24xx/pwm-clock.c
+++ b/arch/arm/plat-s3c24xx/pwm-clock.c
@@ -25,9 +25,9 @@
 #include <mach/regs-gpio.h>
 
 #include <asm/plat-s3c24xx/clock.h>
-#include <asm/plat-s3c24xx/cpu.h>
+#include <plat/cpu.h>
 
-#include <asm/plat-s3c/regs-timer.h>
+#include <plat/regs-timer.h>
 
 /* Each of the timers 0 through 5 go through the following
  * clock tree, with the inputs depending on the timers.