ARM: SAMSUNG: Replace inclusion of plat/regs-serial.h header file

regs-serial.h only includes linux/serial_s3c.h. Include this header
directly to remove unnecessary platform dependency.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
[broonie@linaro.org: Acked for S3C64XX related changes]
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-s3c24xx/mach-vr1000.c

@@ -25,6 +25,7 @@
 #include <linux/tty.h>
 #include <linux/serial_8250.h>
 #include <linux/serial_reg.h>
+#include <linux/serial_s3c.h>
 #include <linux/io.h>
 
 #include <asm/mach/arch.h>
@@ -45,7 +46,6 @@
 #include <plat/clock.h>
 #include <plat/cpu.h>
 #include <plat/devs.h>
-#include <plat/regs-serial.h>
 #include <plat/samsung-time.h>
 
 #include "bast.h"