CONFIG_HAVE_ARM_SCU is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

CONFIG_HAVE_ARM_SCU (not configurable)

modulename: smp_scu.ko

configname: CONFIG_HAVE_ARM_SCU

Linux Kernel Configuration
└─>Kernel Features
└─>HAVE_ARM_SCU
In linux kernel since version 2.6.31 (release Date: 2009-09-09)  
This option enables support for the ARM snoop control unit

source code:
arch/arm/kernel/smp_scu.c