s3c64xx: move s3c64xx header files to asm-arm/arch-s3c64xx

This patch moves the s3c64xx header files from include/
to include/asm-arm/arch-s3c64xx

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/cpu/arm1176/start.S b/cpu/arm1176/start.S
index cb891df..2bb9bf2 100644
--- a/cpu/arm1176/start.S
+++ b/cpu/arm1176/start.S
@@ -35,7 +35,7 @@
 #ifdef CONFIG_ENABLE_MMU
 #include <asm/proc/domain.h>
 #endif
-#include <s3c6400.h>
+#include <asm/arch/s3c6400.h>
 
 #if !defined(CONFIG_ENABLE_MMU) && !defined(CONFIG_SYS_PHY_UBOOT_BASE)
 #define CONFIG_SYS_PHY_UBOOT_BASE	CONFIG_SYS_UBOOT_BASE