CONFIG_INTEGRATOR_CM1026EJS is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Integrator/CM1026EJ-S core module

configname: CONFIG_INTEGRATOR_CM1026EJS

Linux Kernel Configuration
└─>ARM Ltd. Integrator family
└─>Integrator/CM1026EJ-S core module
In linux kernel since version 4.1 (release Date: 2015-06-21)