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

CONFIG_QCOM_SCM (not configurable)

modulename: scm.ko

configname: CONFIG_QCOM_SCM

Linux Kernel Configuration
└─>Qualcomm Support
└─>QCOM_SCM
In linux kernel since version 3.10 (release Date: 2013-06-30)  
source code:
/arch/arm/mach-qcom/