CONFIG_SH_DEVICE_TREE is not available for thedefaultarchitecture x86.
Result is shown for architecture sh

CONFIG_SH_DEVICE_TREE (not configurable)

modulename: of-generic.ko

configname: CONFIG_SH_DEVICE_TREE

Linux Kernel Configuration
└─>Board support
└─>SH_DEVICE_TREE
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code: