default or selected kernelversion does not have config value CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL.
Result is shown for kernelversion 5.19-rc1

In-kernel firmware for SB16 CSP

configname: CONFIG_SND_SB16_CSP_FIRMWARE_IN_KERNEL

Linux Kernel Configuration
└─>Device Drivers
└─>Sound
└─>Advanced Linux Sound Architecture
└─>ISA devices
└─>In-kernel firmware for SB16 CSP
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
Say Y here to include the static firmware built in the kernel
for the SB16 CSP controller. If you choose N here, you need
to install the firmware files from the alsa-firmware package.