default or selected kernelversion does not have config value CONFIG_SND_SOC_OMAP_HDMI_CODEC.
Result is shown for kernelversion 6.2.5

CONFIG_SND_SOC_OMAP_HDMI_CODEC (not configurable)

modulename: snd-soc-omap-hdmi-codec.ko

configname: CONFIG_SND_SOC_OMAP_HDMI_CODEC

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SND_SOC_OMAP_HDMI_CODEC
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
sound/soc//codecs/