CONFIG_USE_BUILTIN_DTB is not available for thedefaultarchitecture x86.
Result is shown for architecture sh
default or selected kernelversion does not have config value CONFIG_USE_BUILTIN_DTB.
Result is shown for kernelversion 6.9.9

Use builtin DTB

configname: CONFIG_USE_BUILTIN_DTB

Linux Kernel Configuration
└─>Boot options
└─>Use builtin DTB
In linux kernel since version 4.1 (release Date: 2015-06-21)  
Link a device tree blob for particular hardware into the kernel,
suppressing use of the DTB pointer provided by the bootloader.
This option should only be used with legacy bootloaders that are
not capable of providing a DTB to the kernel, or for experimental
hardware without stable device tree bindings.