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

CONFIG_NOMADIK_GPIO (not configurable)

modulename: gpio.ko

configname: CONFIG_NOMADIK_GPIO

Linux Kernel Configuration
└─>NOMADIK_GPIO
In linux kernel since version 2.6.35 (release Date: 2010-08-01)  
Support for the Nomadik GPIO controller.

source code: