s3c24x0: move serial driver to drivers/serial

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/include/configs/smdk2400.h b/include/configs/smdk2400.h
index 856d1fb..ffdf217 100644
--- a/include/configs/smdk2400.h
+++ b/include/configs/smdk2400.h
@@ -63,6 +63,7 @@
 /*
  * select serial console configuration
  */
+#define CONFIG_S3C24X0_SERIAL
 #define CONFIG_SERIAL1          1	/* we use SERIAL 1 on SAMSUNG */
 
 #undef	CONFIG_HWFLOW			/* include RTS/CTS flow control support	*/