default or selected kernelversion does not have config value CONFIG_AIM_CDEV.
Result is shown for kernelversion 6.7-rc3

Cdev AIM

modulename: aim_cdev.ko

configname: CONFIG_AIM_CDEV

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>MOST driver
└─>Cdev AIM
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Say Y here if you want to commumicate via character devices.

To compile this driver as a module, choose M here: the
module will be called aim_cdev.

source code: