default or selected kernelversion does not have config value CONFIG_VIDEO_MESON_G12A_AO_CEC.
Result is shown for kernelversion 6.8.2

Amlogic Meson G12A AO CEC driver

modulename: ao-cec-g12a.ko

configname: CONFIG_VIDEO_MESON_G12A_AO_CEC

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>CEC platform devices
└─>Device Tree and Open Firmware support
└─>Amlogic Meson G12A AO CEC driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This is a driver for Amlogic Meson G12A SoCs AO CEC interface.
This driver if for the new AO-CEC module found in G12A SoCs,
usually named AO_CEC_B in documentation.
It uses the generic CEC framework interface.
CEC bus is present in the HDMI connector and enables communication
between compatible devices.

source code: