default or selected kernelversion does not have config value CONFIG_DRM_PANEL_SONY_ACX424AKP.
Result is shown for kernelversion 6.9.9

Sony ACX424AKP DSI command mode panel

modulename: panel-sony-acx424akp.ko

configname: CONFIG_DRM_PANEL_SONY_ACX424AKP

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Display Panels
└─>Device Tree and Open Firmware support
└─>Sony ACX424AKP DSI command mode panel
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say Y here if you want to enable the Sony ACX424 display
panel. This panel supports DSI in both command and video
mode.

source code:
drivers/gpu/drm//panel/panel-sony-acx424akp.c