default or selected kernelversion does not have config value CONFIG_DRM_OMAP_CONNECTOR_HDMI.
Result is shown for kernelversion 6.8.2

HDMI Connector

modulename: connector-hdmi.ko

configname: CONFIG_DRM_OMAP_CONNECTOR_HDMI

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>OMAPDRM External Display Device Drivers
└─>HDMI Connector
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Driver for a generic HDMI connector.

source code: