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

FB driver for the WATTEROTT LCD Controller

modulename: fb_watterott.ko

configname: CONFIG_FB_TFT_WATTEROTT

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Support for small TFT LCD display modules
└─>FB driver for the WATTEROTT LCD Controller
In linux kernel since version 4 (release Date: 2015-04-12)  
Generic Framebuffer support for WATTEROTT

source code: