default or selected kernelversion does not have config value CONFIG_GOLDFISH_AUDIO.
Result is shown for kernelversion 6.9.5

Goldfish AVD Audio Device

modulename: goldfish_audio.ko

configname: CONFIG_GOLDFISH_AUDIO

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Goldfish AVD Audio Device
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Emulated audio channel for the Goldfish Android Virtual Device

source code: