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

CONFIG_COMMON_CLKDEV (not configurable)

modulename: clkdev.ko

configname: CONFIG_COMMON_CLKDEV

Linux Kernel Configuration
└─>COMMON_CLKDEV
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
source code:
/arch/arm/common/clkdev.c