CONFIG_X86_64_ACPI_NUMA is not available for thedefaultarchitecture x86.
Result is shown for architecture 64BIT

ACPI NUMA detection

configname: CONFIG_X86_64_ACPI_NUMA

Linux Kernel Configuration
└─>Processor type and features
└─>ACPI NUMA detection
In linux kernel since version 2.6.15 (release Date: 2006-01-02)  
Enable ACPI SRAT based node topology detection.