CONFIG_MIPS_BONITO64 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

CONFIG_MIPS_BONITO64 (not configurable)

modulename: ops-bonito64.ko

configname: CONFIG_MIPS_BONITO64

Linux/MIPS Kernel Configuration
└─>Machine selection
└─>MIPS_BONITO64
In linux kernel since version 2.6.12  
source code:
arch/mips/pci/ops-bonito64.c