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>
diff --git a/arch/arm/mach-s3c24xx/mach-rx1950.c b/arch/arm/mach-s3c24xx/mach-rx1950.c
index 0a5456c..afb784e 100644
--- a/arch/arm/mach-s3c24xx/mach-rx1950.c
+++ b/arch/arm/mach-s3c24xx/mach-rx1950.c
@@ -21,6 +21,7 @@
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/serial_core.h>
+#include <linux/serial_s3c.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 #include <linux/device.h>
@@ -57,7 +58,6 @@
 #include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/pm.h>
-#include <plat/regs-serial.h>
 #include <plat/samsung-time.h>
 #include <plat/gpio-cfg.h>