CONFIG_S3C2410_CLOCK is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_S3C2410_CLOCK (not configurable)

modulename: clock-s3c2410.ko

configname: CONFIG_S3C2410_CLOCK

Linux Kernel Configuration
└─>SAMSUNG S3C24XX SoCs Support
└─>S3C2410_CLOCK
In linux kernel since version 2.6.18 (release Date: 2006-09-19)  
Clock code for the S3C2410, and similar processors which
is currently includes the S3C2410, S3C2440, S3C2442.

source code:
arch/arm/mach-s3c24xx/clock-s3c2410.c