CONFIG_FRV is not available for thedefaultarchitecture x86.
Result is shown for architecture frv

CONFIG_FRV (not configurable)

configname: CONFIG_FRV

Linux Kernel Configuration
└─>FRV
In linux kernel since version 2.6.12  
selects
CONFIG_HAVE_IDE
CONFIG_HAVE_ARCH_TRACEHOOK
CONFIG_HAVE_IRQ_WORK
CONFIG_HAVE_PERF_EVENTS