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

Multi-Cluster Power Management

modulename: mcpm_head.ko

and/or

platmcpm.ko

configname: CONFIG_MCPM

Linux Kernel Configuration
└─>Kernel Features
└─>Multi-Cluster Power Management
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option provides the common power management infrastructure
for (multi-)cluster based systems, such as big.LITTLE based
systems.

source code:
/arch/arm/common/