default or selected kernelversion does not have config value CONFIG_SERIAL_SAMSUNG_UARTS_4.
Result is shown for kernelversion 6.9.9

CONFIG_SERIAL_SAMSUNG_UARTS_4 (not configurable)

configname: CONFIG_SERIAL_SAMSUNG_UARTS_4

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>SERIAL_SAMSUNG_UARTS_4
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Internal node for the common case of 4 Samsung compatible UARTs