default or selected kernelversion does not have config value CONFIG_SND_SOC_WM8731_SPI.
Result is shown for kernelversion 6.9-rc1
Wolfson Microelectronics WM8731 CODEC with SPI
modulename: snd-soc-wm8731-spi.ko
configname: CONFIG_SND_SOC_WM8731_SPI
Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>SPI support
└─>Wolfson Microelectronics WM8731 CODEC with SPI