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

ST-Ericsson Nomadik

modulename: clk-nomadik.ko

configname: CONFIG_ARCH_NOMADIK

Linux Kernel Configuration
└─>ST-Ericsson Nomadik
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
Support for the Nomadik platform by ST-Ericsson

source code:
drivers/clk/clk-nomadik.c