CONFIG_ARCH_MULTI_V4 is not available for the selected architecture x86.
Result is shown for architecture arm

ARMv4 based platforms (FA526, StrongARM)

configname: CONFIG_ARCH_MULTI_V4

Linux Kernel Configuration
└─>Platform selection
└─>ARMv4 based platforms (FA526, StrongARM)
In linux kernel since version 3.1 (release Date: 2011-10-24)

depends
CONFIG_MMU
NOT CONFIG_ARCH_MULTI_V6_V7
CONFIG_LLD_VERSION=CONFIG_160000 or NOT CONFIG_LD_IS_LLD or CONFIG_ARCH_MULTIPLATFORM