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

Support Integrator/AP and Integrator/PP2 platforms

modulename: integrator_ap.ko

configname: CONFIG_ARCH_INTEGRATOR_AP

Linux Kernel Configuration
└─>Integrator Options
└─>Support Integrator/AP and Integrator/PP2 platforms
In linux kernel since version 2.6.12  
Include support for the ARM(R) Integrator/AP and
Integrator/PP2 platforms.

source code:
arch/arm/mach-integrator/integrator_ap.c


is selected by
CONFIG_INTEGRATOR_IMPD1