CONFIG_SCB_PRIORITY is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin

Init System Cross Bar Priority

modulename: scb.ko

and/or

scb-init.ko

configname: CONFIG_SCB_PRIORITY

Linux Kernel Configuration
└─>BF609 Specific Configuration
└─>Init System Cross Bar Priority
In linux kernel since version 3.12 (release Date: 2013-11-03)  
source code:
arch/blackfin/mach-bf609/scb.c
depends
CONFIG_BF60x