CONFIG_CPU_SH4 is not available for the selected architecture x86.
Result is shown for architecture sh

SH-4

modulename: tlb-sh4.ko

and/or

cache-sh4.ko

configname: CONFIG_CPU_SH4

Processor family
└─>SH-4
In linux kernel since version 2.6.12 )
source code:
arch/sh/mm/
selects
CONFIG_CPU_HAS_INTEVT
CONFIG_CPU_HAS_SR_RB
CONFIG_CPU_HAS_FPU
CONFIG_SH_INTC
CONFIG_SYS_SUPPORTS_SH_TMU
CONFIG_SYS_SUPPORTS_HUGETLBFS