default or selected kernelversion does not have config value CONFIG_GPIO_SH_PFC.
Result is shown for kernelversion 6.5.1

SuperH PFC GPIO support

configname: CONFIG_GPIO_SH_PFC

Linux Kernel Configuration
└─>Device Drivers
└─>Pin controllers
└─>SuperH PFC GPIO support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This enables support for GPIOs within the SoC's pin function
controller.