CONFIG_ARCH_MULTI_V5 is not available for thedefaultarchitecture x86.
Result is shown for architecture arm
ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)
configname: CONFIG_ARCH_MULTI_V5
Linux Kernel Configuration
└─>System Type
└─>Platform selection
└─>ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)