ARM: S3C24XX: Remove duplicate header file inclusion

regs-clock.h header file was included twice.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-s3c24xx/common.c

@@ -41,7 +41,6 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
-#include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
 #include <plat/regs-serial.h>