CONFIG_SAMSUNG_GPIO_EXTRA is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_SAMSUNG_GPIO_EXTRA.
Result is shown for kernelversion 6.5.1

Number of additional GPIO pins

configname: CONFIG_SAMSUNG_GPIO_EXTRA

Linux Kernel Configuration
└─>Number of additional GPIO pins
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Use additional GPIO space in addition to the GPIO's the SOC
provides. This allows expanding the GPIO space for use with
GPIO expanders.