ARM: S3C24XX: Move rtc-core.h from plat to mach

plat/rtc-core.h is only referenced from mach-s3c24xx. Hence
move it there to de-populate the plat directory. While at it
also do some cleanup of the header file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-s3c24xx/s3c2443.c

@@ -34,6 +34,7 @@
 #include <asm/system_misc.h>
 
 #include <mach/regs-s3c2443-clock.h>
+#include <mach/rtc-core.h>
 
 #include <plat/gpio-core.h>
 #include <plat/gpio-cfg.h>
@@ -43,7 +44,6 @@
 #include <plat/fb-core.h>
 #include <plat/nand-core.h>
 #include <plat/adc-core.h>
-#include <plat/rtc-core.h>
 #include <plat/spi-core.h>
 
 static struct map_desc s3c2443_iodesc[] __initdata = {