CONFIG_S5P64X0_SETUP_FB_24BPP is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
default or selected kernelversion does not have config value CONFIG_S5P64X0_SETUP_FB_24BPP.
Result is shown for kernelversion 6.5.1

CONFIG_S5P64X0_SETUP_FB_24BPP (not configurable)

modulename: setup-fb-24bpp.ko

configname: CONFIG_S5P64X0_SETUP_FB_24BPP

Linux Kernel Configuration
└─>S5P64X0_SETUP_FB_24BPP
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Common setup code for S5P64X0 based boards with a LCD display
through RGB interface.

source code:
arch/arm/mach-s5p64x0/setup-fb-24bpp.c