CONFIG_ARCH_MULTI_V4T is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

ARMv4T based platforms (ARM720T, ARM920T, ...)

configname: CONFIG_ARCH_MULTI_V4T

Linux Kernel Configuration
└─>Platform selection
└─>ARMv4T based platforms (ARM720T, ARM920T, ...)
In linux kernel since version 3.1 (release Date: 2011-10-24)  

depends
CONFIG_MMU
NOT CONFIG_ARCH_MULTI_V6_V7
CONFIG_LLD_VERSIONCONFIG_160000 or  NOT CONFIG_LD_IS_LLD