CONFIG_H7202_SERIAL23 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_H7202_SERIAL23.
Result is shown for kernelversion 6.2.5

Use serial ports 2+3

configname: CONFIG_H7202_SERIAL23

Linux Kernel Configuration
└─>Use serial ports 2+3
In linux kernel since version 2.6.12  
Say Y here if you wish to use serial ports 2+3. They share their
pins with the keyboard matrix controller, so you have to decide.