[ARM] S3C: Move regs-rtc.h to arch/arm/plat-s3c/include/plat

Move regs-rtc.h to arch/arm/plat-s3c/include/plat ready
to clean out old include directories.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

drivers/rtc/rtc-s3c.c

@@ -26,7 +26,7 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/plat-s3c/regs-rtc.h>
+#include <plat/regs-rtc.h>
 
 /* I have yet to find an S3C implementation with more than one
  * of these rtc blocks in */