default or selected kernelversion does not have config value CONFIG_SND_SOC_SAMSUNG_SMDK2443_WM9710.
Result is shown for kernelversion 6.5.1

SoC AC97 Audio support for SMDK2443 - WM9710

modulename: snd-soc-smdk2443-wm9710.ko

configname: CONFIG_SND_SOC_SAMSUNG_SMDK2443_WM9710

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC AC97 Audio support for SMDK2443 - WM9710
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Say Y if you want to add support for SoC audio on smdk2443
with the WM9710.

source code:
sound/soc//samsung/