CONFIG_CPU_V7 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Support ARM V7 processor

modulename: proc-v7.ko

configname: CONFIG_CPU_V7

Linux Kernel Configuration
└─>Support ARM V7 processor
In linux kernel since version 2.6.22 (release Date: 2007-07-08)  
source code:
/arch/arm/mm/