default or selected kernelversion does not have config value CONFIG_DRM_SYSFB_HELPER.
Result is shown for kernelversion 6.16-rc7

CONFIG_DRM_SYSFB_HELPER (not configurable)

modulename: drm_sysfb_helper.ko

configname: CONFIG_DRM_SYSFB_HELPER

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Drivers for system framebuffers
└─>DRM_SYSFB_HELPER
In linux kernel since version 6.1.145 (release Date: 2025-07-14)  
source code: