CONFIG_ALPHA_WILDFIRE is not available for thedefaultarchitecture x86.
Result is shown for architecture alpha

Wildfire

modulename: core_wildfire.ko

and/or

sys_wildfire.ko

configname: CONFIG_ALPHA_WILDFIRE

Alpha system type
└─>Wildfire
In linux kernel since version 2.6.12  
AlphaServer GS 40/80/160/320 SMP based on the EV67 core.

source code:
arch/alpha/kernel/core_wildfire.c