default or selected kernelversion does not have config value CONFIG_AB4500_CORE.
Result is shown for kernelversion 5.4.194

ST-Ericsson's AB4500 Mixed Signal Power management chip

modulename: ab4500-core.ko

configname: CONFIG_AB4500_CORE

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>SPI support
└─>ST-Ericsson's AB4500 Mixed Signal Power management chip
In linux kernel since version 2.6.33 (release Date: 2010-02-24)  
Select this option to enable access to AB4500 power management
chip. This connects to U8500 on the SSP/SPI bus and exports
read/write functions for the devices to get access to this chip.
This chip embeds various other multimedia funtionalities as well.

source code: