CONFIG_MACH_APF9328 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_MACH_APF9328.
Result is shown for kernelversion 6.5.1

APF9328

modulename: mach-apf9328.ko

configname: CONFIG_MACH_APF9328

Linux Kernel Configuration
└─>Freescale i.MX support
└─>APF9328
In linux kernel since version 3 (release Date: 2011-07-21)  
Say Yes here if you are using the Armadeus APF9328 development board

source code: