CONFIG_KVM_MPIC is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

KVM in-kernel MPIC emulation

configname: CONFIG_KVM_MPIC

Linux Kernel Configuration
└─>KVM in-kernel MPIC emulation
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Enable support for emulating MPIC devices inside the
host kernel, rather than relying on userspace to emulate.
Currently, support is limited to certain versions of
Freescale's MPIC implementation.